The GYTR Quiet Performance Muffler Insert is designed to beused with the stock exhaust system. This muffler offers a power increase while allowing your muffler to pass the 96 dBA 20" stationary test. This accessory may be restricted to closed-course use.
Fits ’05-’17 WR450F; ’09-’17 WR250F
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Jet Thrust Performance
966 Buford Dr.
Lawrenceville, GA 30043