YOSHIMURA USA RS4 Full Exhaust System - KTM/Husqvarna - 1088512001

The RS-4 is a technological marvel. the RS-4 is a complete exhaust pipe :

• Stainless steel pipe, aluminum muffler and carbon end cap

It features a Yoshimura duplex chamber which cancels out negative exhaust pulses; and effectively acts as a mechanical baffle before the actual perforated baffle area. This in turn improves power while lowering dB.

• Stainless/aluminum muffler construction with carbon fiber tip and a 96dB spark arrested insert
• Stainless tailpipe bolts right onto stock header for easy installation