Yoshimura RS-4 Full System - KTM 250/350 SX-F/XC-F 2016

The RS-4 features a duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap. The RS-4 muffler is offered in aluminum, titanium or carbon fiber. Both Titanium and Stainless Full Systems are available. Stainless systems come with both a 94db and AMA 2-m Max sound insert. Titanium and Carbon Fiber systems are equipped with a 94dB sound insert installed and 2-Meter max inserts as an option sold separately.

• 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