Yoshimura Exhaust RS4 YZ 450F

Yoshimura Exhaust RS4 YZ 450F

If you're looking for serious performance then you came to the right place, introducing the Championship winning RS-4 Slip-On exhaust. . 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.

Features:

• Pentagonal-shaped sleeve
• Polyresonant front muffler chamber which helps reduce noise
• Two-stage stepped baffle
• Carbon fiber end-cap
• CARB/EPA tailpipe emissions compliant
• 100% Made in the USA