Yoshimura Works RS-4 Street Series Slip-On Exhaust

Yoshimura's Street Series exhausts do not require tampering with your vehicle's emissions control system while still delivering that special spirit the world has come to expect from a Yoshimura exhaust.

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.

• Contemporary satin/matte finish
• Uniform heat coloration
• Increased fatigue strength
• Increased scratch and stain resistance

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