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Yoshimura RS-4 Pro Series Full Exhaust System
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.
Front muffler cap functions as a polyresonant chamber to reduce noise
Two-stage stepped baffle
Titanium header and tail-pipe improves flow over the stock exhaust
Includes all required hardware and installation instructions
Fitment is guaranteed or your money back plus free return
Don't waste time installing a product that doesn't fit. We
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