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Yoshimura Signature RS-4 Slip-on Exhaust for YZ450F 14-15
Yoshimura
- SKU:
- 1821-1661
The work that went into developing the RS-4 muffler design paid big dividends in 2010 with Ryan Dungey winning the AMA 450 Supercross and Motocross Championship series as a rookie in the same year, and again in 2012 with the Yoshimura-backed GEICO Honda team winning both 250 Supercross Lites titles. That same R&D has been directed to developing the current generation RS-4 — 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.
* Pentagonal-shaped sleeve
* Front muffler cap functions as a polyresonant chamber which helps reduce noise
* Two-stage stepped baffle
* Carbon fiber end-cap
* Stainless steel tail-pipe
Yoshimura Signature RS-4 Slip-on Exhaust for YZ450F 14-15
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