RS-4 is a unique design that provides an unrivaled combination of power and a quiet exhaust note.
The RS-4 features a duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap. Stainless systems come with both a 94db and AMA 2-m Max sound insert.
*Full System is only compatible with Fuel Injected models.
Front muffler cap functions as a polyresonant chamber which helps reduce noise
Two-stage stepped baffle
Carbon fiber end-cap
Stainless steel header and tail-pipe
Repack Kits, optional Inserts and Spark Arresters are available for all models
Instructions and Parts Diagram
Instructions / Parts Diagram