Yoshimura RS-4 Street Series CARB Compliant Slip-On Exhaust System - Details
The work that went into developing the RS-4 muffler design paid big dividends in 2010 with winning the AMA 450 Supercross and Motocross Championship series, and again in 2012 winning both 250 Supercross Lites titles. That same R&D has been directed to developing the current generation RS-4 for Road Racing, 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.
- A pentagonal shaped muffler that features a 2 stage baffle and a front cap design that functions as a polyresonant duplex chamber resulting in a quieter muffler that offers improved mid to top end performance
- Stainless steel tail pipe
- Stainless Steel sleeve for increased durability
- Turn down carbon fiber end cap
Note: Image for reference only. Actual product may vary according to vehicle.