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.
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 to reduce noise
Two-stage stepped baffle
Carbon fiber end-cap
Includes all required hardware and installation instructions
USFS-approved spark arrestor
Product Note:
Specification
Details
CARB Approved
No
Country of Origin
USA
Muffler End Cap
Carbon Fiber
Muffler Sleeve
Stainless Steel
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.
After watching reviews, I opted to go with this option. I must say, I am quite impressed. I love the sound. I also bought a spark arrestor to go with this.
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