If you're looking for that competitive edge, look no further than Yoshimura's Race Series exhausts. These exhaust components are designed with nothing but power in mind. Each Race Series system is developed in accordance with noise compliance regulations imposed by most race sanctioning bodies worldwide.
Yoshimura's Works Finish takes on a unique coloring after it goes through a heat cycle on the machine that looks much like those titanium works components many factory racers use.
The work that went into developing the RS-4 muffler design paid big dividends during development in AMA Pro Racing. That research was directed at developing the RS-4's unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 muffler features a polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap.
Product Note:
| Specification | Details |
|---|---|
| Country of Origin | USA |
| Muffler End Cap | Carbon Fiber |
| Muffler Sleeve | Stainless Steel |
| USFS Approved Spark Arrestor | No |
| Warranty | 1 Year Manufacturer Warranty |
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
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Answer QuestionYes, all Yoshimura mufflers require a re-packing at regular intervals in order to maintain proper exhaust flow and engine performance. Generally speaking, Yoshimura recommends that their mufflers are re-packaged once per riding season.
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