Brand:Yoshimura

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Yoshimura Yamaha RS-4 YZ450F (14-17)/FX (16-17)/WR450F (16-18) Stainless Slip-On Exhaust/Aluminum Muffler

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$1224.45

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SKU/part number:YO-234812D321

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The work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research & development, and the result is a unique design that provides an unrivaled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling.

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
Repack Kits, optional Inserts and Spark Arresters are available for all models

This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and Aftermarket accessories not found on a bike as delivered from the factory, may not be compatible with this product.

Attention International Customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility including fitment and performance may vary by marketplace.

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Exhausts and Performance

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