Yoshimura RS-4 Slip-On Exhaust
The Yoshimura RS-4 Slip-On exhaust has been put to the test and has proven its capabilities at the highest level of competition. In 2010 the RS-4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season. The Yoshimura-backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS-4 exhaust.
Utilizing the same R&D that helped bring success at the national level has resulted in a unique exhaust design that provides an unrivaled combination of power and quiet exhaust note. The Yoshimura RS-4 Pipe features an innovative carbon cone end cap, a two staged stepped baffle, and a polyresonant duplex chamber which acts as a muffler within a muffler to help save weight and centralize mass. Working in conjunction with factory race teams has allowed Yoshimura to develop a exhaust system that gives you an unparalleled competitive advantage.
*Products shown may vary from actual products.
- Pentagonal-shaped sleeve
- Polyresonant front muffler chamber which helps reduce noise
- Two-stage stepped baffle
- Carbon fiber end-cap
- CARB/EPA tailpipe emissions compliant
- Yoshimura Enduro, Signature, and Race Series mufflers
- 100% Made in the USA
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For all US orders, items are shipped via Canada Post which transfers the parcels to USPS once in the US. Tracking number will be more accurate with USPS once it has crossed the US border.
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Item doesn't fit or you aren't happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. Once item is received we will issue a refund to your original payment method.
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