Power Flow Kit Replacement Filter Twin Air Replaces the stock air-restricting backfire screen and comes standard with a backfire filter. 2-Stroke Kits: Include a rigid, lightweight billet aluminum cage that provides a tight seal to the air box; Replaces flimsy plastic stock cage. 4-Stroke Kits: Include a rigid, lightweight, billet aluminum cage with a special backfire-resistant layer of foam laminated to the inside of the filter

2007	KTM	250
2004	KTM	300
2005	KTM	300
2006	KTM	300
2007	KTM	300
2005	KTM	85
2006	KTM	85
2008	KTM	85
2004	KTM	105
2006	KTM	105
2007	KTM	105
2008	KTM	105
2010	KTM	105