MPW Dual Foam Air Filter. 1x MPW Dual Foam Air Filter. Fender / Fender Extender. Fits: KTM EXC 08-12, 125 SX 07-10, 250 SX 07-10, 250/450 SX-F 07-10. Exhaust Silencers. Dual Foam Air Filters provide optimum air flow and protection from dirt and grit for motocross bikes.