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About Yoshimura RS-4 Signature Series Full Systems
Yoshimura RS-4 Signature Series Full Systems
- 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
- Titanium systems include non-spark-arrested 99 dB motocross insert (unless noted)
- Mufflers available with glossy carbon fiber, satin titanium or brushed aluminum sleeve
- Stainless systems come with 94 dB insert installed (meets AMA competition requirements), 2 meter Max insert in the box.
Warning: California Proposition 65