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Yoshimura Signature Series R-77 mufflers are all business when it comes to performance. Developed in the heat of competition, they feature a trapezoidal design, which allows a large volume of packing material—giving you top performance with minimal sound increase. These exhaust components have a straight baffle for ample flow, MIG-welded front cap, and a riveted carbon fiber end cap with 304-L polished stainless steel rivets and bands. Models are available in carbon fiber or stainless steel—for bikes from Suzuki, Honda®, Kawasaki, and Yamaha.
Not Yet Reviewed
$699.00
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$1,339.00
Yoshimura Street Series R-77 mufflers are developed with superbike technology and styling. Their distinctive trapezoidal design allows for a large volume of packing material and, in turn, delivers top performance. The carbon cone end cap is riveted, using high-end 304-L polished stainless steel rivets and bands—while the sleeve is carbon fiber black or polished stainless, with a large volume of packing material and a straight baffle for ample flow. Dozens of models are available, sold individually or in pairs. Order the R77 recommended for your bike application.
Not Yet Reviewed
$519.00
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$719.00
Yoshimura's Race Series RS-4 mufflers were engineered using the same research and development that's been directed into their race-winning muffler design—a unique concept providing an unrivaled combination of power and a quiet exhaust note. The front cap design functions as a poly-resonant chamber, making for quieter mufflers with improved mid- to top-end power. Constructed with stainless steel sleeves, carbon fiber cones, and two-stage stepped baffles, Yoshimura conceived these exhausts with nothing but power in mind. Models are available for Honda® and Kawasaki applications.
Not Yet Reviewed
$599.00
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$839.00
Yoshimura Signature Series RS-12 exhaust systems deliver huge power at a very light weight! These systems offer better handling, thanks to a lower centralized mass coefficient. Systems feature a uniquely-styled muffler body with a carbon fiber cone end cap. Front cap design functions as a polyresonant chamber to lower dB output, while improving mid- to top-end power. Two-staged, stepped baffle tapered headpipe delivers optimal flow and performance. If you've been striving for a competitive edge, take things to the next level with the Yoshimura Signature Series RS-12 exhaust systems! Order the model designed for your application. Additional features and benefits: * The applications for the Signature Series line cover the entire powersports spectrum, including many of Yoshimura's offroad applications * Maximum muffler volume which helps manage sound, add power, and provide more clearance for the rear tire and brake caliper * Improved performance gains and weight reduction * Utilizes precision machined joints which provide a superior fit and improve system life and performance * Titanium systems include non-spark-arrested 99 dB motocross insert (unless noted) * Mufflers available with glossy carbon fiber, satin titanium, or brushed aluminum sleeve * Stainless systems come with 94 dB insert installed (meets AMA competition requirements), 2 meter max insert in the box * CARB/EPA tail-pipe emissions compliant; all applications are marked with appropriate EPA noise emissions labels and certified by an independent laboratory for EPA noise compliance * All Signature Series components are tested, documented, and marked, as required by federal and state regulations
Not Yet Reviewed
$839.00
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$1,149.00
Yoshimura Street Series RS-4 mufflers deliver more power and fewer decibels. These light exhausts feature a carbon fiber cone end-cap, a 2-stage stepped baffle, and striking good looks. Their front cap design functions as a poly-resonant chamber, making for quieter mufflers with improved mid to top-end power. Material options of stainless steel and carbon fiber are available for the muffler body. Yoshimura's Street Series offers street-legal options for almost everything on two wheels. Order the model recommended for your bike application.
Not Yet Reviewed
$719.00
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$739.00
Yoshimura Signature Series RS-4 mufflers deliver more power and fewer dB, with an improved sound for the rider who values quality over volume. These light off-road mufflers feature a carbon fiber cone end-cap, a 2-stage stepped perforated baffle, and noticeable good looks. And their front cap design functions as a poly-resonant chamber, making for quieter exhaust notes with improved mid- to top-end power. USFS-approved spark arrester sound inserts come installed in the mufflers. Material options of polished aluminum and stainless steel are available for the mufflers. Yoshimura Signature Series RS-4 components are tested, documented, and marked as required by federal and state regulations. Order the model recommended for your application.
Not Yet Reviewed
$519.00
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$739.00
Yoshimura Street Series RS-9T mufflers deliver styling, power, and clearance. These tapered parallelogram-shape mufflers have a Compact, forward positioned design to provide a lower center of gravity for better mass centralization with a larger core for improved throttle response, and power in mid- and top-end. They also offer more volume than stock to provide a decrease in overall dB noise level. Yoshimura Street Series RS-9T mufflers feature the Work's finish and a carbon fiber end cap, plus they allow the use of five sound insert options (sold separately) to customize power delivery and sound reduction. Note: Yoshimura Works finish takes on a unique coloring after it goes through a heat cycle on the motorcycle that looks much like those titanium works components our factory racers use. The finish is a contemporary satin/matte style with uniform heat coloration, increased fatigue strength, and increased scratch and stain resistance.
Not Yet Reviewed
$599.00
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