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Yoshimura RS-4 Signature Slip-On Exhaust for 450 SX 16
Yoshimura
- SKU:
- 01105026_1821-1765
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.
* Delivers huge power at a very light weight
* Offers better handling thanks to a lower centralized mass coefficient
* Uniquely-styled pentagonal muffler body with a carbon fiber cone end cap
* Front cap design functions as a polyresonant chamber to lower dB output while improving mid- to top-end power
* Two-staged, stepped baffle
* Tapered headpipe delivers optimal flow and performance
* Systems come with 96 dB insert installed (meets AMA competition requirements), 2 meter Max insert in the box
* System features stainless steel header pipe and satin-finish aluminum muffler sleeve
Yoshimura RS-4 Signature Slip-On Exhaust for 450 SX 16
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