Yoshimura RS-4 Offroad Race Series Non-CARB Compliant Slip-On Exhaust System - Details
The work that went into developing the RS-4 muffler design paid big dividends in 2010 with Ryan Dungey winning the AMA 450 Supercross and Motocross Championship series as a rookie in the same year, and again in 2012 with the Yoshimura backed GEICO Honda team winning both 250 Supercross Lites titles. That same R&D has been directed to developing the current generation RS-4, a unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 features a Polyresonant duplex chamber, a two staged stepped baffle and an innovative carbon cone end cap.
- Stainless steel header and tail pipe
- Pentagonal shaped sleeve
- Front muffler cap functions as a polyresonant chamber which helps reduce noise
- Laser cut heat shield on polyresonant chamber
- Two stage stepped baffle
- Turn out carbon fiber end cap
Note: Image for reference only. Actual product may vary according to vehicle.
Note: This product is not legal to purchase or sell in the state of California.