AIRFILTER PO KTM 450 RALLY ’25

The best filter in the world can’t do its job if there are leaks in the seal of the airbox. Twin Air’s PowerFlow Kits ensure a leak-proof, fool-proof fit with a rigid, lightweight aluminum cage that replaces your flimsy, plastic stock cage and, when needed, a billet-aluminum flange that bolts tight to your airbox.

PowerFlow Kits are custom-designed to each unique application for superior airflow, improved sealing surface, removal of the restrictive backfire screen, and ease of service.

All Kits include a BIO Factory Pre-Oiled Air Filter. Replacements are available separately.

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

Kit for YZ450F 10-13 also includes a complete airbox that increases the volume of the intake along with wash plug, cage and all mounting hardware