Yoshimura RS-4 Signature Series Full Exhaust System
Yoshimura Signature Series exhaust components are the answer for riders faced with ever-tightening noise and emissions regulations at the federal level. All Signature Series components are independently tested, documented, and marked as required by state and federal regulations as CARB/EPA-compliant.
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.
Pentagonal-shaped sleeve
Front muffler cap functions as a polyresonant chamber which helps reduce noise
Two-stage stepped baffle
Carbon fiber end-cap
CNC mandrel-bend header and tail pipe
Includes instructions and all required installation hardware
80dB EPA noise emissions compliant
Product Note:
Specification
Details
CARB Approved
Yes
Country of Origin
USA
Header Construction
Stainless Steel
Muffler End Cap
Carbon Fiber
Muffler Sleeve
Aluminum
USFS Approved Spark Arrestor
No
Warranty
1 Year Manufacturer Warranty
Vehicle Fitment
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.
Yes, absolutely. Every full exhaust system we sell includes everything from the header(s) all the back to the muffler. It will replace the entire exhaust system.
