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Best 500 system money can buy
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AIS Delete Kit YFZ450R 250SX-F Best 500 system money canAn Air Induction System (AIS) delete kit for the Yamaha YFZ450R removes the emissions components that inject fresh air into the exhaust. This is one of the most common "first mods" for YFZ450R owners to improve performance and simplify maintenance. Key Benefits Eliminates Popping: Virtually stops the backfiring and popping sounds during deceleration. Accurate Tuning: Essential for getting correct Air Fuel ratio readings when using a dyno or auto tune
