Description
Yoshimura RS-4 Signature Series Slip-On Exhaust
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 slip-on 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.
- Easy-to-install slip-on design
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-bent stainless steel tail pipe
Includes instructions and all required installation hardware
80dB EPA noise emissions compliant
Product Note:
| CARB Approved | Yes |
| Country of Origin | USA |
| Header Construction | Varies (make selection above) |
| Mid-Pipe | Varies (make selection above) |
| Muffler End Cap | Carbon Fiber |
| Muffler Sleeve | Aluminum |
| USFS Approved Spark Arrestor | Varies (make selection above) |
| Warranty | 1 Year Manufacturer Warranty |
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