2-stroke kits include a Twin Air filter and a rigid, lightweight, billet aluminum cage that replaces the flimsy plastic stock cage and provides a tight seal to the airbox
4-stroke kit replaces the air-restricting stock backfire screen with a screen that has a special backfire-resistant layer of foam laminated to the inside
Includes a rigid, lightweight billet aluminum cage
Latest kit for YZ450F also includes a complete airbox that increases the volume of the intake; also includes wash plug, cage and all mounting hardware
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