***Pro series will not work with OEM rear shock, must use aftermarket remote reservoir shock
Complete exhaust system made in premium stainless
TIG welded
Designed for modified engine
Air Fuel tuning highly recommended
Tubing step and size carefully designed for maximum power.
Fitment: Yamaha YFZ450R All Years
Big 2.25'' core
98db range for the regular length.
Dyno proven and track approved.
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ATTENTION HAWAII, ALASKA, PUERTO RICO, AND ALL OTHER U.S. TERRITORIES: FOR LARGE/BULKY ITEMS CONTACT US PRIOR TO PURCHASING TO VERIFY WHETHER OR NOT WE CAN SHIP TO YOU BASED ON CURRENT SHIPPING RATES.