Seller notes

Yoshimura RS-4 Slip On Exhaust Aluminum YAMAHA WR450F YZ450F YZ450FX Pentagonal-shaped mufflerMaximized internal volumePolyresonant duplex front chamberStepped, two-stage core baffleSpark Arrestor/Sound Insert Compatible Fits the following models: YAMAHA WR450F 2019-2023 YAMAHA YZ450F 2020-2022 YAMAHA YZ450FX 2019-2023...

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