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384 R-77 Trapezoidal Cone The R-77’s trapezoidal shape is serious business when it comes to performance. This pipe was designed from racetrack feedback from racers Tommy Hayden and Blake Young, so not only does this pipe look great, it does great things for a motorcycle. The R-77 delivers better performance overall because of the large volume of packing material in it, courtesy of that trapezoidal shape. The sound coming from this pipe is perfect—not loud, but definitely throaty. With a straight baffle and removable low-volume insert, the R-77 muffler’s front cap is MIG-welded, while the end cap is riveted using high-end 304-L polished stainless steel rivets and bands. You can get the muffler either in stainless steel, titanium, or race-inspired carbon fibre. The cone end caps come in either polished stainless steel or carbon fibre, and the Slip-on itself is mounted with a stainless steel mounting clamp. You can make this pipe your own with all these choices. The R-77 comes as a Slip-on muffler, which attaches simply onto the stock exhaust mounting slip-fit, or on various full Yoshimura exhaust systems. TRI Dual Tip Tri-Oval Developed in Japan by Fujio Yoshimura, the TRI is a race-bred full exhaust system. It features a handsome dual outlet, turndown titanium-tipped muffler that produces a unique sound note that is pleasing to the ears. The dual outlets and overall design make the TRI visually pleasing, as well. Many of our customers believe that the dual outlet tips combine with the Tri-Oval shape make the TRI one of the most eye-catching pipes on the market. We’re not going to argue with that. The TRI full systems feature 304-L polished stainless steel MIGwelded construction, with titanium and carbon muffler sleeve options. There are high-exit applications available for select models. R-55 Tapered Tri-Oval The R-55 is currently one of Yoshimura’s most popular pipes, and for good reason. It’s a hybrid of Moto-GP, Superbike, and Yoshimura style, which makes for a pretty impressive package. Its asymmetrical shape appeals to the eye and really captures the spirit of Moto-GP racing. It also complements the look of any sportbike, following the race-inspired lines of today’s motorcycles. The R-55 features a straight baffle with a removable low-volume insert. The pipe is TIG-welded to Yoshimura quality standards, and it’s made of high-quality 304-L polished stainless steel. From there, you have the option of a polished stainless steel or carbon fibre end cap. The laser mounting bracket is TIG welded to ensure strength and good looks. You can get the R-55 as a Slip-on muffler, which attaches simply to the stock exhaust mounting slip-fit, or on our various full Yoshimura exhaust systems. TRC Undertail Looking to dress up your bike with a good-looking muffler? The TRC Undertail pipes are designed for motorcycles where space is at a premium, such as the Yamaha R-1 and Ducati 848. Thanks to the well thought out, compact designs of the TRC Undertails, the mufflers are able to tuck in and complement the lines of sportbikes, adding to the overall aesthetic of the machine. But they don’t just look good! The TRC Undertails make great horsepower, and we know you expect nothing less from Yoshimura. The mufflers are available in titanium, stainless steel and carbon fibre. The TRC Undertails are available as Slip-on, Full System, and ¾ System. They also come with a low-volume insert and carbon fibre end caps. Slip-On Highlights: • Moderate performance gains • Muffler and Mid-pipe combinations give the look of a full system Technical Details: • 304L polished stainless steel mid-pipe • Mounts to OEM header Average weight savings vs. stock: 3-10 lbs. per muffler. Average power gain vs. stock: 3 hp. Average dB levels: 102 dB without insert, 96dB with insert. Bolt-On Highlights: • Quick and easy installation • Great sound and performance, saves weight compared to OEM exhaust Technical details: • CNC-machined aluminum adapter • Mounts to existing stock muffler flange Available styles: • TRC, TRS. RS3, RS-3C Average weight savings vs. stock: 1-5 lbs. per muffler Average power gain vs. stock: 3 hp Average dB levels: 102 dB without insert, 96 dB with insert Introducing Signature Series by Yoshimura - an offering of exhaust systems that a dealer can install with confidence. Our Signature Series lineup is the answer for today’s dealer who is faced with a challenging marketplace. The applications for the Signature Series line cover the entire powersports spectrum, including many of our off-road applications. Every one of our Championship Winning Motocross exhaust systems and nearly all of out ATV/Side-by-Side applications are all members of the Signature Series Family. All Signature Series components are tested, documented, and marked as required by federal and state regulations. All Street Series systems are Slip-on/Bolt-on applications that do not require tampering with the vehicle’s emissions control system, yet still deliver that special spirit the world has come to expect from the legendary company known as Yoshimura. Street Series applications cover all of the iconic profiles that Yoshimura has become famous for. From the legendary tri-oval profiles to the refined carbon fiber R-77 mufflers, and even our new Alpha masterpieces. Our Street Series exhaust offer street-legal options for almost everything on two wheels. FOR CLOSED COURSE COMPETITION ONLY; NOT INTENDED FOR STREET USE If you’re looking for that competitive edge, look no further than our Race Series. These exhaust systems are designed with nothing but power in mind. Each Race Series system is developed in accordance with noise compliance regulations imposed by most racing sanctioning bodies worldwide.


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