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.
A TwinAir Powerflow Kit includes a pre-oiled Twin Air filter, a special aluminum cage and all necessary mounting hardware.
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.
Twin Air PowerFlow Kits for ATV's :
Don’t let your stock set-up rob you of power and engine reliability. These kits eliminate leaks and provide more air for power, but the filter can still be removed in a snap for cleaning. The new generation PowerFlow kit converts the filter mounting system from a clamp on filter to a filter cage and wing bolt mounting system. This new flange system allows for the use of a Twin Air Air Box Cover for washing the air box.
PowerFlow kits are available for many models, and we're constantly adding new ones to fix issues with OEM airboxes.
This fits a range of KTM 4 strokes from 2007 through to 2011:
- 250 EXC-F 2007-2011
- 250 SX-F 2007-2010
- 450 EXC 2007-2010
- 450 SX-F 2007-2010
- 505 EXC-F 2011
- 525 EXC-F 2011
- 530 EXC-F 2011