The Yoshimura RS-4 Competition Series Exhaust System speaks volumes for performance and offers increased horsepower & Torque. The RS-4 features a polyresonant duplex chamber, a 2 stagged stepped baffle and a innovative carbon end cap that give this exhausta quiet earthy note. Dominate the track or desert with the RS-4.
-The next evolution in Yoshimura exhaust, the RS-4 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 head pipe delivers optimal flow and performance
-Stainless steel header
-Competition series mufflers include spark-arrested 96 dB insert unless noted. Some models will include a 94 dB insert. Please see product details when selected from drop down.
- Easy Instalation
- Sounds Great
Specifications and Options
||BikeBandit.com makes no representation or warranty with respect to on-highway use in California or any other state. Consult with the manufacturer as to any such exemptions before installing any add-on or modified emissions-related parts.
||RS4S Canister W/ turn out end cap
|Muffler Material Type
||Aluminum, Carbon Fiber
||96 dB, 96 dB, non-spark arrested, Dual Muffler; 96DB