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. Titanium and Carbon Fiber systems are equipped with a 94dB sound insert installed and 2-Meter max inserts as an option sold separately.
*Full System is only compatible with Fuel Injected models.
- Pentagonal-shaped sleeve
- Front muffler cap functions as a polyresonant chamber which helps reduce noise
- Two-stage stepped baffle
- Carbon fiber end-cap
- Titanium header and tail-pipe
Repack Kits, optional Inserts and Spark Arresters are available for all models
Instructions and Parts Diagram Instructions / Parts Diagram