2013 Yoshimura Book of Speed

2013 BOOK OF SPEED

2013 BOOK OF SPEED

2013 YOSHIMURA BOOK OF SPEED

4 YOSHIMURA HISTORY6 RESEARCH AND DEVELOPMENT

STREET-ROAD RACE8 ROAD RACE PROGRAMS10 STREET, ROAD RACE SLIP-ON & FULL SYSTEMS12 R-77, R-77D14 TRC16 TRS, TRI20 RS-3, RS-3C22 R5524 LIMITED EDITION GSX-R PROGRAM

OFF-ROAD26 OFF-ROAD RACING PROGRAMS28 OFF-ROAD SLIP-ON & FULL SYSTEMS30 RS-9 34 RS-436 RS-4D38 RS-2

ATV40 RS-2 ATV SLIP-ON & FULL SYSTEMS

UTV42 UTV SLIP-ON & FULL SYSTEMS44 RS-846 RS-448 RS-2

HARD PARTS50 STREET, ROAD RACE53 OFF-ROAD54 UTV

POWERED BY YOSHIMURA56 GSX-R ENGINE, ELECTRONICS

YOSHIMURA RACE SHOP58 IN-HOUSE ROAD RACE ENGINE SERVICES60 IN-HOUSE OFF-ROAD ENGINE SERVICES

ACCESSORIES62 APPAREL66 PROMOTIONAL ITEMS

68 CLOSED COURSE COMPLIANCE INFORMATION

4 5Page Page

Hideo Pops Yoshimura and his namesake company are legendary in the world of motorcycle racing. Pops story begins in Japan, where he established his personal reputation working on the BSAs and Triumphs of servicemen stationed there. In 1954 Pops took his ambition to the next level, launching the company Yoshimura in Japan and quickly becoming renowned for giving his customers the competitive edge they craved.

With success in Japan as his foundation, Pops set a new goal: racing in Americas Daytona 200. The next step toward achieving his dream was to open Yoshimura Research and Development of America, Inc., which he did in 1971 in North Hollywood, California. In 1976, the AMA established the official Superbike series with its first event at of course Daytona. Yoshimura took on the competition with a young Kawasaki rider named Wes Cooley. Wes finished fourth at Daytona that inaugural year, and in 1977 Yoshimura and Cooley followed with a third-place podium finish.

Then came the breakthrough year of 1978. Yoshimura made a historic switch by forming a business relationship with Suzuki. Yoshimura had been able to breathe fire into the Kawasaki, but with Suzuki he had the chance to work with a bike that handled. Results were instantaneous: Steve McLaughlin on a Yoshimura- built GS1000 won the Daytona Su-perbike race for Yoshimura and Suzuki. Proving the win was hardly a fluke, Team Yoshimura racers Ron Pierce, Wes Cooley and Dave Emde finished 1-2-3 at Daytona in 1979. From 1978 through 1981, Yoshimura and Suzuki won four straight Daytona Superbike races, with Cooley winning the 1979 and 1980 AMA Superbike titles as icing on the cake.

In 1981, Pops went back home to Japan, while his son Fujio Yoshimura stayed in America to take Yoshimura R&D of America to the next level. When Pops retired, Fujio headed home to run Yoshimura Japan. In his place, Suehiro Watanabe (Nabe) became the head of Yoshimura R&D of America. In 2005, Nabe decided to focus on the Research and Devel-opment operations of Yoshimura, and Don Sakakura became the head of Yoshimura R&D America. Today, Don also oversees the day-to-day operation of the Yoshimura Suzuki Road Race Team, Team Yoshimura Suzukis motocross and supercross team and the companys collabora-tion with Factory Honda Racing and GEICO Honda Racing.

To bring Pops story full circle, he came out for Daytona every year after his retirement. In his later years, Pops enjoyed his accomplishments and he never lost the passion to win. Pops passed away in 1995, leaving a legacy that will live on in the history of Superbike racing.

A Winning Legacy


6 7Page Page

Yoshimura is renowned for its research and development. But producing the finest exhaust systems in the world requires more than a big R&D department. Yoshimura is the leading manufacturer of exhaust systems because our commitment to R&D is matched by our dedication to uncompromising quality standards and our expertise in manufacturing pipes that meet those standards.

From the companys beginning, weve understood that cutting-edge research and develop-ment sets Yoshimura apart from the competition. Thats why we built a completely separate facility dedicated only to R&D. Creating an environment where everyone is focused on a single mission allows our talented technicians to develop improved designs while continu-ally raising the bar on product quality. The Yoshimura motto is simple and has not changed since the companys inception: Make the best parts possible, and never compromise.

Actually producing exhaust pipes that meet our quality standards is no simple task, but our manufacturing group consistently pulls it off. The attention to detail and old-world craftsmanship that goes into making Yoshimura products is impossible to replicate with a machine. The technicians at work here are artists the exhaust systems they produce are pieces of art. All of this talent, tools and raw metal come together to form the best exhaust systems in the world.

Unrivaled Research and Development


8 9Page Page

Both Yoshimura Japan and Yoshimura Research and Development of America, Inc. have a long and successful history of collaborating with championship-winning road racing teams. The individuals who form the heart and soul of both of our companies are passionate about creating world-class products that take racing machines to the next level of performance, and our dedication is apparent in a long string of Yoshimura-backed riders standing on top of the podium.

Yoshimura Japan has an extensive research and development program and is heavily involved with sup-porting teams around the world, which is one critical way that we use on-track experience to develop cutting-edge technology. This year, Yoshimura Japan is building racing engines and providing high performance exhaust systems for the FIXI Crescent Suzuki racing team and its Suzuki GSX-R1000 as it pursues the World Superbike Championship.

For decades Yoshimura R&D has been involved with road racing in America, partnering with the leading mo-torcycle manufacturers and sponsoring the most talented riders. Yoshimura R&D currently runs the Yoshimura Suzuki Racing Team, supporting the factory team effort in the AMA Pro Superbike Championship Series and collaborating with Yoshimura Japan to build engines and exhaust systems. Yoshimura Suzukis road racing success is legendary, with Yoshimura leading the factory Suzuki Superbike team to 10 championships in the last 13 AMA Superbike Series. As always, the knowledge gained in the heat of competition has helped us to develop high-performance products for both road racers and street riders.

Globally, Yoshimura also supports a variety of racing teams with high-performance exhaust systems, including the World Endurance Championship-winning Suzuki Endurance Racing Team and Team Suzukis Australian Mo-torcycle Grand Prix riders.

Yoshimura Global Road Racing Programs


11PageSee application book for a full range of models and applications for each system.See page 68 for more information on EPA and CARB compliance.10Page

Street & Road Race Research and DevelopmentYoshimura has dedicated countless hours of R&D matched by extensive testing to develop EPA noise-compliant slip-on exhaust systems. Moreover, every one of these mufflers features the crafts-manship, attention to detail and high quality that Yoshimura has prided itself on for over 55 years.

Yoshimura ExhaustsThere are many ways to increase the performance of a sport bike, but the best and most effective way is by increasing the efficiency of the engines exhaust system. In fact, the engines ability to produce power is directly proportional to how quickly it can expel spent gases.

Over the last five decades, Yoshimura has invested millions of dollars in R&D and manufacturing equipment to ensure that were on the cutting edge of exhaust system technology matching motorcycle engine advances stride for stride. Where tubes used to be cut with hacksaws and bent by hand over a torch, we now have CNC cut-off saws to accurately cut pipes to length while multi-level CNC tube benders shape pipes to exact specifications.

Despite these advances, including the use of computer-controlled robot welding machines, weve remained true to our commitment to weld our pipes by hand. Our racing and R&D groups combine science and art including hand-crafted design and manufacturing to extract a level of performance from our exhaust systems that simply cannot be rivaled by any high-tech gadget or tool in the world.

At Yoshimura, we make replacement parts available for those times when some repairs are in order. Just call one of our Sales Techs with what you need. Sales Department: 1-800-634-9166.

Yoshimura Slip-On and Full SystemsMore than 55 years after the introduction of Yoshimuras Racing Full Exhaust Systems, we continue to build succeeding generations of exhaust systems that provide unparal-leled power, performance and quality.

The full systems are designed with nothing but power in mind. Our knowledgeable R&D technicians use their years of experience and expertise to make truly remarkable pipes. In addition, we have more pipe-bending tooling than any company in the business, allowing us to create the best systems available period.

Slip-Ons are designed to utilize the stock OEM header. Depending on applications slip-ons are available as a bolt-on directly to the flange of the OE tail pipe, or with a yoshimura tail pipe to mount the collector of the OE header.

Our list of innovations is long and growing, highlighting the fact that some companies are just discovering certain manufacturing techniques and technology weve been perfecting for 35 years, such as our duplex systems. Compare Yoshimura exhaust systems to the competition and youll see theres simply no match for their quality and attention to detail, which gives you confidence that youre going to get a perfect fit and outstanding performance.

2013 STREET - ROAD RACE SYSTEMS


The R-77D is a dual-outlet version of the race-proven R-77 and boasts a carbon fiber cone end cap. The R-77D requires no inserts or restrictions, increasing muffler packing

life and providing five percent more open exhaust outlet area and as much as three decibels lower sound output (compared to the standard open R-77). The R-77D also

offers greater gains in low- and mid-range power without restrictive inserts.

The popular R-77 offers outstanding performance, thanks to being developed in the heat of competition. It features a trapezoidal design, which allows a large volume of packing material and in turn delivers top performance. With a straight baffle and re-

movable low-volume insert, the R-77 mufflers front cap is MIG-welded, while the end cap is riveted using high-end 304-L polished stainless steel rivets and bands.

The muffler is available in stainless steel, titanium or race-inspired carbon fiber. The cone end caps come in either polished stainless steel or carbon fiber.

RACING FULL SYSTEM


R-77 R-77D

R-77D CARBON

CARBON

STAINLESS TITANIUM


If youre looking for serious performance, you came to the right place. The TRC is a race-proven exhaust featuring a tri-oval design, trick cone-shaped end cap and an easily removable low-volume insert. The TRC has a straight baffle leading to that distinct cone-shaped end cap. The cap is available in stainless steel or carbon. You can choose the muffler in 304-L polished stainless steel, carbon fiber or titanium. Both titanium and carbon-fiber sleeves come with carbon-fiber end caps for a truly sporty look. The TRC also comes with a laser-etched heel guard that combines style and function.

RACING FULL SYSTEM

CARBON


TRC

TITANIUM

STAINLESS


The TRS is dazzling proof that you can get Yoshimura quality and performance at a very friendly price.

The TRS is a race-bred muffler that features the clear look and sound that Yoshimura is famous for. The straight baffle of the TRS leads to a single polished stainless steel turn-down tip, and its compatible with a low-volume insert. The TRS comes as a bolt-on or slip-on muffler that easily attaches onto the OEM (stock) exhaust mounting slip-fit or mounting flange. There are three configura-tions to choose from: polished stainless, titanium or carbon fiber.

If theres one full exhaust system known for an unrivaled combination of performance, distinctive sound and strik-

ing design, the Yoshimura TRI is it. The TRI takes full advantage of Yoshimuras decades of experience helping to develop race-winning superbikes and turns that experience into exhilarating performance. It also features a dual-outlet, turn-down titanium-tipped muffler with its own unique exhaust pitch a truly racing-inspired product.

RACING FULL SYSTEM


TRS TRI

TRS

TRISTAINLESS

CARBON

CARBON

TITANIUM

TITANIUM

2013 STREET - ROAD RACE SYSTEMS MARTIN CARDENAS


The race-bred RS-3 exhaust has proven to be extremely popular among rider looks for a combination of performance and value. It enhances performance dramatically, provides an

enviable exhaust note and offers the unmistakable look and sound of Yoshimura.

RS-3 mufflers feature a straight baffle that leads to a single turn-down machined aluminum end cap. The oval-shaped muffler is capable of housing a low-volume

Yoshimura insert. Muffler sleeve options for the RS-3 include polished stainless steel, titanium and carbon fiber.

The RS-3C is a great alternative to the RS-3, providing the same design and performance with the addition of a carbon-fiber end cap to give it a trick look.

RACING FULL SYSTEM


RS-3 RS-3C

RS-3C STAINLESS

RS-3 TITANIUM

RS-3 STAINLESS

CARBON


The R-55 is one of Yoshimuras most popular pipes, and for good reason. It takes its styling cues from MotoGP, Superbike and classic Yoshimura design, which

creates a strikingly good-looking package. Its asymmetrical shape appeals to the eye and really captures the spirit of MotoGP racing. It also complements the look

of any sportbike, following the race-inspired lines of todays motorcycles.

The R-55 features a straight baffle with a removable low-volume insert. The pipe is TIG-welded to Yoshimura quality standards and is made of high-quality pol-

ished stainless steel. It offers the option of a polished stainless steel or carbon fiber end cap. The laser cut mounting bracket is TIG-welded to ensure strength

and good looks. The R-55 is available as a slip-on or racing full system.

RACING FULL SYSTEM


R-55

STAINLESS-STAINLESS

CARBON-STAINLESS

TITANIUM R-55LE


The 2013 Limited Edition GSX-R series screams style from every angle and it is sure to turn heads wherever it travels. With its striking custom paint, EPA noise compliant carbon fiber Slip-On , and numerous street legal hard parts included, owning one of these motorcycles not only makes your exquisite taste apparent, it grants you ownership of an extraordinary piece of Yoshimura history. Only 45 units will be produced worldwide.

Yoshimura Limited Edition GSX-Rs can only be ordered through an Authorized Suzuki Dealer. We do not sell them customer direct. If your dealership is not a Yoshimura Dealer, please contact [email protected] or call our sales department at (800) 634-9166 and we will get you set up to sell these incredible bikes.

Standard Equipment: Custom Paint, Radiator Stencil, Solo Seat Cowl, EPA Noise Compliant Muffler, Case Savers, Oil Filler Plug, Engine Plug Kit, Axle Blocks, Chassis Protectors, Bar Ends, Steering Stem Nut, Fender Eliminator Kit, Race Stand Spools, Owners Kit, Individually Numbered Name-Badge

Optional Parts Shown Include, OZ Racing Wheels, Top Triple Clamp, Renthal Bars and Grips, Renthal Rear Sprocket, RK Drive Chain, Zero Gravity Windscreen, Saddlemen Seat, Rear Suspension Linkage, Custom Brake Rotors. Please consult your Suzuki dealer for more information on available optional parts.

2013 YOSHIMURA LIMITED PROGRAM

26 27Page Page

Yoshimura understands the dynamics of creating race-winning teams like no one else. First comes research and development. Then testing and re-testing. Then the final phase measuring the result against the toughest competition in the world. With decades of involvement in championship-winning racing efforts, Yoshimura begins every year with an almost unfair advantage a foundation of success that allows us to start with a built-in lead on the competition.

For 2013, Yoshimura is involved with off-road racing worldwide. In the U.S., Yoshimura is heavily involved with several teams as they compete in both the AMA Pro Motocross and Supercross series. President of Yoshimura Racing Don Sakakura heads Team Yoshimura Suzukis motocross and supercross efforts, which includes Suzuki Racing Advisor Ricky Carmichael and multi-championship winning rider James Stewart. Yoshimura is also backing RCH Racing in the AMA series, providing engines and a range of factory Suzuki parts for the RM-Z450. Building on our 2012 success with Honda, Yoshimura is supporting the GEICO Honda team by providing the championship-proven RS-4 exhaust systems for the CRF250R along with a wide variety of performance hard parts. Yoshimura is also continuing to back Team Honda Muscle Milk with equipment for its CRF450R. This year 2013 marks Yoshimuras sixth year as the Official Performance Exhaust Supplier for American Honda Racing, a partnership that has resulted in incredible success on the track and paid dividends in researching and devel-oping new products. A perfect example of our collaboration is introduction of the all-new RS-9 Dual system developed for the CRF450R.

Yoshimura Global Off-Road Racing Programs

YOSHIMURA SUZUKI

Outside of the U.S., the Serco Motorsports Factory Yamaha race team is ready to take on the competition in the Australian Pro Lites Championship series. Also in Australia, the Factory Suzuki Supercross and Motocross teams are primed for another year of competition. In Brazil, Yoshimura is allied with Factory Yamaha Brazil, providing them with performance equipment and technical support for their racing efforts. Throughout every event and series, Yoshimura will continue to add to our bank of technical knowledge and then use that knowledge to develop products engineered to give you the winning edge.

RCH RACING

GEICO HONDA

TEAM HONDA MUSCLE MILK

SERCO YAMAHA AUSTRALIA

2013 OFF-ROAD SYSTEMS

28 29Page Page

In 2013, you can count on Yoshimura-backed off-road racing teams to be testing an unparalleled amount of equipment. Our extensive test-

ing with a variety of makes and models forms the foundation of our research and development of performance exhaust systems and

hard parts and engine kits for everything from small-displacement dirt bikes designed for younger riders to AMA Supercross-win-

ning 450s. Our primary goal is always to discover ways to increase power and performance and simply put the

more we test, the more we learn.

In 2013, Yoshimura is backing a number of race teams around the world, beginning with Team Yoshimura Suzuki. In addition, were

supporting RCH Racings Suzuki RM-Z450, GEICO Honda, Team Honda Muscle Milk, Serco Yamaha Australia, Yamaha Brazil, as well as a huge

support team of professional and amateur racers across America.

As always, our racing experience supports our goal of making superior products. Building performance exhaust systems for the factory race efforts improves our research and development, which improves the

overall performance of our products. Adapting technology we learn on the track to our consumer products is what makes the Yoshimura name

synonymous with quality and performance. One look at our RS-9 and RS-4 exhaust systems illustrates the endless cycle of development. Working in conjunction with the factory teams has provided us with

new ways to increase performance, lower sound levels and centralize mass. The end result is a product that gives you an unparalleled

competitive advantage.

Yoshimura Off-Road Research and Development

At Yoshimura, we make replacement parts available for those times when some repairs are in order. Just call one of our Sales Techs with

what you need. Sales Department: 1-800-634-9166.



Introducing the all-new RS-9 Dual. The 2013 CRF450Rs new dual-muffler configuration gave us the opportunity to create an entirely new muffler built

specifically for the CRF450R. We worked with Top AMA Pro Riders to achieve maximum performance and mass centralization, and to optimize rider usability.

We achieved all this while maintaining AMA Regulation sound levels. The RS-9s uniquely sculpted Carbon Fiber end-caps feature a Tunable Insert System, so you

can fine-tune power delivery and decibel levels to your specifications. The RS-9 Dual is AMA Pro and Amateur sound legal out of the box.

The Vertical Divider System divides exhaust gases smoother than other brands which gives you more power/torque and better throttle response.

STAINLESS FULL SYSTEM

TITANIUM


CARBON

RS-9NEW

2013 OFF-ROAD SYSTEMS JAMES STEWART


The work that went into developing the RS-4 muffler design paid big dividends in 2010 with Ryan Dungey winning the AMA 450 Supercross and Motocross Championship series as

a rookie in the same year, and again in 2012 with the Yoshimura-backed GEICO Honda team winning both 250 Supercross Lites titles. That same R&D has been directed to

developing the current generation RS-4 a unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 features a Polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap. The RS-4 muffler is available in aluminum, titanium, or carbon fiber and both

titanium and stainless full systems are available. Stainless systems come with a 94db and AMA 2-m Max sound insert. Titanium and Carbon Fiber

systems are equipped with a 94dB sound insert.

FULL SYSTEM

ALUMINUM

TITANIUM


RS-4

CARBON


When it comes to exhaust systems designed for competition, Yoshimura and the Team Yoshimura Suzuki race team have always worked toward a single goal: helping you win. A perfect example of

the result of our single-minded focus is the RS-4D muffler. It builds on the technology that made the RS-4 incredibly successful on the racetrack and enhances its exceptional performance.

The RS-4D boasts a unique dual-outlet design that increases the amount of open area at the ex-haust outlet. With dual internal baffles, the RS-4D increases the exhaust gas flow rate, resulting

in smoother power delivery and increased throttle control. It also offers increased horsepower and torque throughout the power curve, especially in the bottom- to mid-RPM range where riders need it most. The RS-4D is a full titanium system and is available with either titanium

or carbon fiber muffler, and comes with an ultra-lightweight carbon fiber end-cap.

FULL SYSTEM


RS-4D

CARBON

CARBON

TITANIUM


The RS-2 is a potent and versatile design that evolved from our original TRC, engineered to provide increased power and power delivery. With a different pyramidal shape that features increased volume, the RS-2 is a quieter system

with a larger core and it offers the added bonus of outstanding performance in a value-priced package.

The diamond-shaped high-volume muffler comes with a low-volume insert. Optional inserts are available depending on your needs. The stainless tailpipe bolts right onto the stock header, and the muffler comes with an aluminum canister.

FULL SYSTEM


RS-2

ALUMINUM

CARBON

TITANIUM


Yoshimura has unrivaled experience creating pipes that help ATVs produce maximum power and smooth power delivery. The RS-2 a potent and versatile pipe that evolved from our original TRC design is a product of our championship-winning experience.

It has a larger core and a distinctive diamond shape that features increased volume, which equates to quieter performance. The diamond-shaped high-volume muffler features maximized muffler volume, an innovative stain-less cone end cap and a 99db low-volume insert or 96db spark arrestor. The RS-2 comes in aluminum or titanium muffler options.

For years Yoshimura has backed Americas leading ATV racers, dedicating ourselves to extracting maximum performance from their machines and ultimately launching our riders onto the podium. Our efforts have met with overwhelming success and Yoshimura-backed riders have won the most prestigious championships and countless race wins. ATV racing is thriving and Yoshimura is proud to play a part in helping to bring factory-level support to the sport.

2013 ATV SYSTEMS

RS-2

ALUMINUM

TITANIUM


In recent years, UTVs and Side x Sides have emerged as an exciting new category of off-road racing. Its always fun to watch a sport grow from the ground up, and we have welcomed the opportunity to put our knowledge, skill and craftsmanship to work developing performance products for these machines.

Yoshimura has been working extensively with OEs and factory racing teams to develop racing-oriented parts that can also benefit the weekend warrior. Because we take racing seriously, we have utilized the most technologically advanced equip-ment available. Through the use of high-tech data acquisition and GPS tracking technology, similar to those used in Formula One racing, weve developed the best-performing products in the industry. With additional input from our racers, weve tuned everything from intakes to exhausts, and engines to engine management systems. Yoshimura is proud to play a role in the continuing development of UTV performance and racing.

UTV

2013 UTV SYSTEMS


These UTV Side x Side Slip-Ons are manufactured from polished 304 stainless steel and feature a deep draw polished stain-less-steel inlet. The muffler itself is quite innovative. It features multi-staged construction that starts with a straight baffle that flows into a large volume perforated baffle chamber. From there gases are allowed to expand reducing dBs without excessive flow restrictions. The overall design increases power and torque. All Yoshimura UTV systems come with USFS approved 96 dB spark arrestor installed.

The RS-8 Full System is manufactured to the highest quality standards. Our technicians are meticulous during construction; with each system mandrel bent using polished 304 Stainless Steel tubing for a long lasting, durable and rust-resistant life. In addition, the RS-8s headers feature an over-sized step tube design, helping to produce incredible power from idle to redline.

3/4 SYSTEM

2013 UTV SYSTEMS

RS-8

SLIP ON


The RS-4 is a technological masterpiece as both a slip-on and full system. The RS-4 Slip-On uses the same technology that goes into our Full Systems, but features an easier-to-install application. Each Slip-On muffler features 20-gauge 304 Stainless Steel CNC rolled and robot-welded canister shells, with a carbon fiber cone end-cap. It also features an anodized, CNC mounting bracket and articulating silicone-rubber mounting bushings. In addition, the RS-4s premium muffler packing helps meet the USFS noise specifications. The RS-4 comes with USFS approved spark arrestor installed.

The RS-4 Full System is equally impressive. Its CNC mandrel bent using polished 18-gauge 304 Stainless Steel tubing for a long lasting, durable and rust-resistant life. Headers fea-ture an over-sized step tube design for maximum power throughout the entire RPM range. Argon purged MIG welding ensures absolute top-quality fit and finish. Put it all together and you have a full system that is over three pounds lighter than the stock unit and increases overall power from idle to redline.

FULL SYSTEM

SLIP-ON

2013 UTV SYSTEMS

RS-4


If youre looking for a versatile and potent pipe designed to boost both low-range and high-RPM performance, you cant do better than the RS-2 Dual Full System. The larger volume dual muffler configuration enables a quieter system. The increased volume allows this lower dB system to still flow enough, yielding positive power gains. The RS-2 Dual is also produced using state-of-the-art manufacturing techniques. Each system is CNC mandrel bent using polished 304 stainless-steel tubing. The result is a long lasting, durable and rust-resistant pipe. In addition, the RS-2 Duals header feature an over-sized step tube design for exceptional power across the power band. The RS-2 Dual comes with a USFS approved spark arrestors installed.

FULL SYSTEM

SLIP ON

2013 UTV SYSTEMS

RS-2 DUAL

See application book for a full range of applications. 51Page50Page

CASE SAVERSYoshimura case savers are designed to minimize damage from light crashes and scrapes, and give you enough time to get back to the pits (or home) without worrying about losing oil.

REAR LINKAGE KITProvides a more linear-rate suspension geometry by changing rear suspension ratio

Allows for adjustment of rear suspension geometry to improve traction characteristics

CNC machined from aircraft grade alloy

CHASSIS PROTECTORSYoshimura chassis protectors help minimize damage from sliding type falls. The plastic construction is soft enough to slow slides and will wear down slowly, but its tough enough to keep the track away from your bike in most cases.

ALUMINUM REAR SET BRACKETSYoshimura Aluminum Rear Set Brackets are the perfect answer for those needing more adjustment from the stock rear set controls. These Brackets feature two ad-ditional mounting positions over the stock location for increased possible ground clearance and lean angles. They also enable more aggressive body positioning for better body and weight transfer on the bike.

FORK TUBE CAPSAllows for an additional 10mm of front ride height

Retains stock compression and rebound adjusters


FENDER ELIMINATOR KITSYoshimura has always been synonymous with quality craftsmanship, precision fitment, and impeccable quality. Our newly designed Fender Eliminator Kits are no exception, and they are sure to give your bike the sleek race look that every rider craves.

SWING ARM PIVOT KITRaises swing arm pivot +2mm

Allows for greater swing arm angle


MIRROR HOLE CAP KITCover up those unsightly mirror holes on track day with our feather-weight Mirror Hole Cap Kit. Available in Silver (clear anodized) or Black.

BAR ENDSThese high-quality bar ends replace stock bulky (and heavy) units. All hardware and components are included in an easy to install kit. Available in Silver (clear anodized) or Black.

2013 HARD PARTS

ROAD


STEERING STEM NUT / BOLTThese Yoshimura CNC machined steering stem fasteners are the perfect part to give your cockpit a more factory look, and you wont have to struggle drilling safety wire holes, because we did it for you.

TIMING INSPECTION PLUG KITTurn that stock bike into a show stopper! Yoshimura engine plugs are CNC machined from 6061 T6 alloy, anodized in our distinctive Magnasonian or black anodized finish, and topped off with laser-etched logo. Kit includes Small and Large Timing Inspection Plug for a complete look. Also Available Individually.

RACE STAND STOPPERSAttaches to swingarm for use with race stand. Sold as a pair with hardware. Fits all 6, 8 and 10mm applica-tions. Available in Silver (clear anodized) or Black.

FRONT SPROCKET COVER KITSThis light-weight Front Sprocket Cover is a great alternative to plastic OEM covers. It not only adds a noticeable amount of race class to your bike, but functions exceptionally well. The CNC machined aluminum cover with carbon fiber backing, mounts closely to the sprocket and surrounding area, which eliminates virtually all chain grime from being flung out from the sprocket.

OIL FILLER PLUGYoshimura has proved once more that even the most simple of parts can have room for improvement. Not only does this plug look great, it is also CNC machined from solid aluminum for a perfect fit.

2013 HARD PARTS

ROAD OFF-ROAD

OIL FILLER PLUG Madeofhigh-gradealuminum

LaseretchedYoshimuralogo

Pre-drilledforsafetywire

STEERING STEM NUT Pre-drilledforsafetywire


Madeofhighgradealuminum

CHECK PLUG NewFlushdesign

Anodizedfinish


SPARK PLUG HOLDER LaseretchedYoshimuralogo

Madefromhigh-gradealuminum

Keepssparkplugcapinplace

AXLE ADJUSTER BLOCKS Lighterthenstock

Enhancedlook

LaseretchedYoshimuralogos

Madeofhighgradealuminum

THROTTLE BODY NUT Anodizedbilletaluminum

Laser-etchedlogo

Blocksoffchokecableholeinthrottlebody

TIMING INSPECTION PLUGS LaseretchedYoshimuralogo

Madefromhigh-gradealuminum

REAR BRAKE CLEVIS Madeofhigh-gradealuminum

StrongerthanOEMunit



ALUMINUM RACING ROOFSpending all day in your SXS is a blast! But the sun and environment can eventually take their toll on even the best of drivers. We designed our Aluminum Racing Roof to provide maximum protection from the sun, keeping in-car temperatures more pleasant for driver and passenger. Aluminum keeps the weight down, but sturdy enough for the harshest of conditions.

ROOST GUARDSThese Roost Guards protect vital components under the front cowling, especially the Oil Cooler and Brake Master Cylinder. We discovered a lot of dirt and debris gets kicked up into these areas while turn-ing. Protecting these components and maintaining oil temperatures is important in all aspects of driving. Roost Guards deflect debris, protecting your Oil Cooler and Brake System from serious damage.

ALUMINUM WIND DEFLECTORThe Aluminum Wind Deflector provides even more comfort for all day excursions. By deflecting air upward from the front of the car, it reduces turbulence and helmet buffeting, allowing the driver to remain focused and less fatigued. The deflector also limits the amount of dirt, mud, and debris hitting the occupants while racing or trailing others off-road.

RZR XP 900CARBON FIBER INTAKE SCOOPSThe stock RZR XP 900 intake panels are adequate, but we needed something better. We designed these Air Scoops to fit over the stock intake ports, providing maximum air-flow to the engine. They are not only extremely functional, but lightweight and styled to compliment the RZRs sharp lines.

RZR XP900RADIATOR ROOST GUARDThe Radiator Roost Guard was one of the first products we developed for the RZR XP. Protecting your radiator and maintaining coolant tem-peratures is important in all aspects of driving. While racing, we found a lot of mud and debris accumulated on the radiator causing undesirable temperatures. The Radiator Roost Guard deflect debris off to the side allowing your radiator to remain clear and do its job. This is a great alter-native to spending hundreds more on a radiator relocation kit.

RZRCARBON FIBER MIRROR KITWhile most of our R&D focuses on maximizing performance, were also concerned about safety. The more we ran our RZR at the track and off-road, the more we desired mirrors. This kit is simple to install and the convex mirror provides much needed vision behind you. Similar to our air scoops, they feature lightweight carbon/aluminum construction and styled for the RZR Series.

2013 HARD PARTS

UTV

EM PRO

The EM Pro is the most advanced state-of-the-art engine management system available for the newer GSXRs. If you want improved throttle response, smooth dyno curves and unprecedented performance, the EM Pro is just what you need. Unlike other units, the EM Pro has integrated both fuel and ignition management each storing up to two completely custom maps. Along with complete engine management control, the GSX-R1000 kit features race-inspired over-rev adjustment, 3-level engine brake adjustment, and speed limit adjust-ment for those coming hot into the pits! Race use only, not intended for any other use.

INNER ROTOR GENERATOR & MAGNETO COVER Inner rotor is lighter than the stock for racing use

Replaces stock components

Comes with rectifier

Must use magneto cover (sold separately)

See application book for a full range of applications. 57Page56Page Call for (800) 634-9166 more information.

2013 GSX-R RACING PARTS

VALVE COTTER SET

VALVE RETAINER SET

FIXI CRESCENT WORLD SUPERBIKE TEAM

CYLINDER HEAD GASKETMETAL GASKET SET

CAMSHAFTS AND SPROCKETS


STAGE 1 (CYLINDER HEAD ONLY) Decarbonizecombustionchamber

Portintaketract,exhaustport,valveseating

Confirmvalvespringtensionandconditionof associated components prior to assembly

STAGE 2 (CYLINDER HEAD ONLY) Blendvalveseatstocylinderhead

Intakemanifoldblending

Lightportshapingandvalvejob


STAGE 3 (CYLINDER HEAD ONLY) Fullportandpolish

Reshapebothintaketractandexhaustportto optimize performance

Reshapingofcombustionchamber

Completevalvejob


ADDITIONAL SERVICES

Machinegasketservices

Millcylinderheadtoincreasecompressionratio

Inspectionandreassemblyoftopend

Bottomendblueprintingandassembly

ISFtransmissionprocess

Knifeedgeandbalancecrankshaft

Enginedynobreakinanddynotuning

Completeracespecenginebuildforallclasses

Installationofhighperformanceenginecomponents

Camshafts,Crankshafts,ConnectingRods,Pistons

Valvetraincomponents

IN-HOUSE ENGINE SERVICESThis is the way to go if you are serious about winning. Once your suspension is dialed in, and you are pretty well sorted out with your bike, its time to look at adding some more power. Starts are everything in racing.

At Yoshimura, we have been building four-stroke racing engines for over 50 years. We understand that your engine is the sum of many parts. We do not simply throw a big cam in, pop up the compression, and create a time bomb. Depending on which stage of engine modification you choose, we build power at self-sustaining, balanced levels.

Call for (800) 634-9166 more information.

2013 IN-HOUSE ROAD RACE ENGINE SERVICES


ATV & OFF-ROAD ENGINE KITSIf you want to win, youll need the best engine performance you can get. Yoshimura offers three basic levels of engine perfor-mance upgrades.

STAGE 1Stage 1 is the basic hop-up that best fits the average racer. This is the correct choice if you are racing in the C or B class (be-ginner or novice). Stage 1 has excellent reliability yet gives the racer a healthy dose of power when used in conjunction with a Yoshimura pipe.

STAGE 2Stage 2 is for the racer who is a top contender in the interme-diate or B class. The compression is upped, the head modified, and a Yoshimura billet cam tops off the Stage 2 list. The increase in compression will require more maintenance, but all in all, the Stage 2 engine kit provides a very strong yet reliable engine. Stage 2A is a completely assembled engine.

STAGE 3Stage 3 is a full-tilt racing engine featuring big horsepower gains. This is the choice for a serious amateur or pro rider who is looking to win and will accept nothing less than the best. Every part of a Stage 3 engine is manicured or modified; even the gear sets and internal transmission parts are polished and matched using our in-house Yoshimura Isotropic Surface Finish Process. Stage 3 is a completely assembled engine.

ENGINE MANAGEMENT SYSTEMSYoshimura has been a leadership company in EFI management for years. By the time all these other guys figure out what we already know - the race will be over. Check out our race proven PIM2 units for off-road racing applications, and our Em Pro for road racing applications. They have a long track record of perfor-mance, durability, and ease of use.

ISF PROCESSYoshimura has an in-house Isotropic Superfinishing Process (ISF) department, and thats where we can blueprint your engines gear sets just as its done on Formula 1 machines. This technology allows your engine to run more freely through decreased friction and proper interaction of reciprocating parts.

Even though typical ISF treatments include gear sets and internal transmission parts, all of the reciprocating parts will benefit from the ISF process. We use this same process on our 240-horsepower Superbike racing engines, as well as 70-horsepower Motocross/ATV racing mills. The mirror-like finish reduces friction on all reciprocating surfaces, reducing drag and increasing durability. It also reduces heat sig-nificantly, which makes for a smoother-running engine. After ISF treatment, every reciprocating part interacts smoothly and the combined reduction in friction unleashes previously trapped power.

Unleashing trapped power, lowering operating temperatures, and giving your machine that winning feeling is a good thing.

BEFORE AFTER

CAMSHAFTSYoshimura has been making high-end camshafts for more than 50 years. We started out designing Superbike camshafts, but have since expanded the line of camshafts to include motocross motorcycles and ATVs. Yoshimuras expertise and years of experience in building the best camshafts in the business is legendary. All Yoshimura camshafts are constructed from one-piece billet or blanks, not re-grind. As a result, our cams not only perform at the highest level possible, but they are also extremely durable.


2013 IN-HOUSE OFF-ROAD ENGINE SERVICES

62 63Page Page

YOSHIMURA R&DColors: Blue, Black, White. Sizes: MED, LRG, XLG, 2XL

3XL in Blue, Black Only

VINTAGEColors: White.

Sizes: MED, LRG, XLG, 2XL

ALMOND LOGOColors: White.


POPS STIKAColors: Black, White.


ITALIC LOGOColors: Black/Green, Blue, Black/Red, Yellow, Red

Sizes: SML/MED, LRG/XLG

SPRAY CAN 4.2Colors: Black, Red, Blue.

Sizes: MED, LRG, XLG, 2XL3XL in Black Only

QUADRINColors: Blue, Yellow, Black, Ash.

Sizes: MED, LRG, XLG, 2XL3XL in Ash Only

CITY LINESColors: Army Green, White, Charcoal.

Sizes: MED, LRG, XLG, 2XL3XL in Ash Only

2013 YOSHIMURA APPAREL

TEES TEES

64 65Page Page

LIMITED EDITION YOSHIMURA JS7 GEARTeam T-Shirt. This T-Shirt features James Stewarts JS7 Team Logo on the front and a custom Yoshimura logo on the back. The upper sleeves feature James Stewarts Crest Logo and Yoshimura Italic Logo.

BACK

ITALIC LOGOBlue, Black, Red, White. Sizes: SML/MED, LRG/XLG

YOSHIMURA LOGOBlue, Black, Red, White. Sizes: SML/MED, LRG/XLG

ALMOND LOGOBlue, Black, Red, White. Sizes: SML/MED, LRG/XLG

CITY LINESSizes: MED, LRG, XLG, 2XL, 3XL

ITALIC LOGOSizes: MED, LRG, XLG VINTAGE


QUADRINSizes: MED, LRG, XLG, 2XL

3XL in Gray Only

FRONT

BACK

2013 YOSHIMURA APPAREL

HATS

HOODIES

JS7

FENDER DECALS

DECAL SHEETSYoshimura 4.25" X 5.25" Decal sheet

Scatter decal sheet 11" x 17"

DECALSYoshimura U.S.A. Sticker

Yoshimura Vinyl Sticker 10"Yoshimura Vinyl Sticker 7"

Yoshimura Trailer Decal 3X2

LANYARD

WATER BOTTLE

66 67Page Page

LOGO BANNERSYoshimura black logo banner 3'x10'Yoshimura white logo banner 3'x10'

Trey Canard

Kevin Windham Justin Barcia

Josh Hill

James Stewart Ricky Carmichael

Broc Tickle

Leon Camier

Martin Cardenas Chris Clark

Eli Tomac


2013 YOSHIMURA POINT OF PURCHASE

PROMOTIONALYoshimura believes in providing full support for dealers who carry Yoshimura products. We encourage dealers to order Point of Purchase (P.O.P.) materials directly from Yoshimura to help sales and brighten up their store. We have created a variety of P.O.P materials ranging banners to signage. Yoshimura P.O.P materials use a variety of exciting race photography and product images, and all are professionally designed with the aim of boosting your sales and helping your dealership become identified with the renowned Yoshimura brand.

TEARDROP FLAGS35 x 129 Black, 35 x 129 White

E-Z UP10 x 10 Black, 10 x 10 White

24X17 LOGO TIN

3X5 VINYL RACER BANNERS

68 69Page Page

TERMS:All orders will be shipped COD unless other arrangements have been made. Yoshimura reserves the right to specify collection by certified check, money order, or company check. Personal checks are not accepted. Dealers wishing to open an account should request an application. All open accounts are paid 30 days from invoice date.

SHIPPING:All orders are FOB Chino, California. Orders received before 2:30 PST will ship the same day or the next business day if the item is in stock. We will ship by the most reasonable means based on the volume of the order, unless otherwise specified.

SPECIAL ORDERS:All special order items must be paid in full before the order is placed. These items are non-returnable and no refund will be given. All special order items will be shipped freight collect.

LIABILITY:The purchaser of any parts releases the manufacturer of those parts and Yoshimura from all liabilities pertaining to use of the parts. The purchaser recognizes that any alteration or modifications to any motorcycle may in-crease the risk of accident and/or injury and may also render the motorcycle illegal for use on public roads.

RETURNS:No item will be accepted for return without prior approval. All approved returns must be accompanied with a return authorization (RA) number and must be in new and unused condition. All RA numbers must be clearly dis-played on the outside of the box. All returns are subject to restocking fees, not to exceed 20%. No return will be accepted on closeout or discontinued items, or purchases older than 90 days. Refunds are issued in the form of like payment. All refused shipments are subject to a 20% restock fee and all applicable freight charges.

CLAIMS:Since ownership of product transfers at the FOB point, claims for damaged, lost, or short shipments must be made directly to the carrier.

THE LIMITED WARRANTY:All Yoshimura of America, Inc. exhaust systems carry a limited one-year war-ranty against defects in workmanship and/or materials.

WHO IS COVERED:This warranty is provided to the original purchaser of the exhaust system.

WHAT VOIDS THE WARRANTY:1. Abuse, misuse, improper installation and modifications. 2. No proof of purchase at the time of warranty. Claimant must provide proof of purchase (original receipt or invoice) and a warranty authorization number obtained from Yoshimura. 3. Finishes with discoloration or rust due to inclement weather conditions, exposure to salt, exposure to chemicals, or lack of maintenance by the customer are not covered. 4. Electrical parts are not covered under warranty.

EXTENT OF WARRANTY:Any defective exhaust system properly returned to Yoshimura will be re-paired or replaced by Yoshimura. Yoshimura is not responsible for any other expense incurred by the customer under the terms of this limited warranty, nor is Yoshimura responsible for any damages, either consequential, inciden-tal, special, contingent, or otherwise, or expenses or injury arising directly or indirectly from the use of exhaust system. Any exhaust system returned to Yoshimura must be sent at the customers expense along with the proof of purchase and the warranty authorization. Yoshimura reserves the right to determine whether the terms of warranty, set out above, have been properly followed. In the event that the terms are not followed, this warranty is void. Yoshimura is the sole determinate of abuse, misuse, installation errors and modifications and should any of these be found, this warranty is void. The duration of any and all implied warranties are limited to the duration of the express warranty. All incidental or consequential damages are hereby ex-cluded. The warranty gives you specific legal rights and you may have other rights, which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the above limitations and exclusions may not apply to you.

For International customers please contact your dealer or distributor regarding warranties. For a complete list of distributors go to www.yoshimura-rd.com.

TECHNICAL QUESTIONS:See your local dealer or call Yoshimura directly. Most jetting and EFI ques-tions can be easily answered with a simple phone call.For Yoshimura direct technical information, call (909) 628-4722 and ask for Customer Service Department.

Yoshimura R&D of America, Inc.5420 Daniels Street

Chino, CA 91710

Business Hours: 7:30 a.m.-5:00 p.m. (PST) Monday-Friday

For general contact, here are our phone numbers Information .......................................(909) 628-4722 Dealer Sales .....................................(800) 634-9166 Retail Sales ........................................(909) 231-1427 Fax ...................................................... (909) 591-2198 Website ........................... www.yoshimura-rd.com

Printed in USA. All rights reserved. All weights and measurements and other specifica-tions are approximate. Some products may reflect final licensor approval. The company reserves the right to make changes without notice at any time in colors, decorations, specifications, prices, and models, and to discontinue certain models. Colors and dec-orations may vary. Yoshimura exhausts and engine management systems are designed for closed-course racing and not intended for any other use. Yoshimura Research and Development of America, Inc. 2013.

CLOSED COURSE COMPETITION PRODUCT DISCLAIMER:All products displayed or listed in this catalog are designed, manufactured, intended, and sold for use on vehicles that are operated only on closed course racing circuits unless otherwise noted. Use of these products on public roads or lands is strictly prohibited and may be a violation of local, state, or federal laws. Products intended for use on vehicles operated on public roads or lands are clearly so indicated.

FREQUENTLY ASKED QUESTIONS ABOUT AFTER-MARKET EXHAUST SYSTEMS FOR MOTORCYCLES AND ATVS IN CALIFORNIA.

This is Motorcycle Industry Councils interpretation of California law and regulations related to after-market exhaust systems. MIC has prepared this information in an effort to clarify related issues for dealers in California.

What exhaust systems and slip-on mufflers can a California dealer sell or install without violating California air pollution control requirements?

After-market exhaust systems that can legally be sold under Californias air pollution control requirements are (1) systems that are des-ignated replacement parts, (2) systems considered modified parts for which an Executive Order has been issued, and (3) systems only for use on racing vehicles that have been adequately identified as such.

What exhaust systems and slip-on mufflers are considered replacement parts?

Under California Air Resources Board (CARB) regulations, Replacement parts are parts that have the same effect on emissions as the original equipment part that they are intended to replace. In the case of exhaust systems for motorcycles and ATVs, CARB considers after-market exhaust systems to be replacement parts if either of the following conditions is met:

1. The vehicle was not originally equipped with a catalyst and all emission controls originally connected to the exhaust system are reconnected to the after-market exhaust system and are functioning properly. (It is rare for other emission controls to be connected to a non-catalyst motorcycle or ATV exhaust system, but examples include an exhaust gas oxygen sensor or an air injection system.)

2. The vehicle was originally equipped with one or more catalysts, but the catalyst(s) are retained and all emission controls originally connected to the exhaust system (e.g., an oxygen sensor) are reconnected to the after-market exhaust system and are functioning properly.

As long as they meet the above definition of replacement parts, slip-on mufflers are legal for use on the road unless the muffler being replaced contained a catalyst.

How can I tell if a modified exhaust system has been approved?

Modified parts are components that are designed to perform differently from original equipment components with respect to emis-sions control. Under CARB regulations, any exhaust system component that replaces an original equipment catalyst or eliminates a pro-vision for an exhaust gas oxygen sensor or some other emissions control device connected to the exhaust system is a modified part.

After-market part manufacturers are required to provide a label to identify modified parts that have been approved for sale. The label will indicate the manufacturers name, device name and a valid Executive Order (E.O.) number assigned by CARB. The format of the E.O. number is D-xxx-xxx, where xxx is a series of designated numbers. The label is either affixed directly to the part itself or included with the part with instructions to install it in a visible location.

When can I sell a modified exhaust system without a CARB label?

Parts for Racing Vehicles may be sold under certain circumstances without CARB approval. Under Health and Safety Code Section 39048, the term Racing vehicle is defined to mean a competition vehicle not used on public highways. Under California Health and Safety Code Section 43001, air pollution control requirements do not apply to racing vehicles. Exhaust systems for competition ve-hicles not used on public highways are also exempt. CARB allows the marketing and sale of modified parts for competition use only provided an adequate disclaimer is used in any advertising and packaging.

Can I install an unapproved after-market exhaust system that was purchased by the owner from out of state?

Installation of unapproved after-market exhaust systems is legal only if the systems are replacement parts or being installed on a |motorcycle or ATV for competition use only.


TERMS OF BUSINESS

2013 BOOK OF SPEED

2013 BOOK OF SPEED

Documents

2013 Yoshimura Book of Speed