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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.
Fitment
2009 Honda CRF450R
2010 Honda CRF250R
2010 Honda CRF450R
2011 Honda CRF250R
2011 Honda CRF450R
2012 Honda CRF250R
2012 Honda CRF450R
2013 Honda CRF250R