Up for sale is TWIN AIR 2026 250 SX-F Factory Edition KTM POWERFLOW KIT 154224C. The vendor part number is�154224C. Please read the title to know what is for sale..2 � STROKES: The best filter in the world can�t do its job if there are leaks in the seal of the airbox. That�s why Twin Air provides a complete line of products to ensure a leak-proof, fool proof fit. Twin Air�s PowerFlow kit comes with a rigid, lightweight, billet aluminum cage that provides a tight seal to the airbox and replaces your flimsy plastic stock cage. 4 � STROKES: Twin Air PowerFlow kit for 4-Stroke models: Replace your air-restricting stock backfire screen with our New PowerFlow kit. The kit includes a rigid, lightweight, billet aluminum cage with a special backfire-resistant layer of foam laminated to the inside of the filter.