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 Twin Air 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.
PowerFlow kits are available for many models, and we're constantly adding new ones to fix issues with OEM airboxes.
- Honda CRF 450 X (2019-2019)
- Honda CRF 450 L (2019-2019)
Sizing Charts by Brand
Listed by brand (in alphabetical order). Here you can find up-to-date sizing charts. If you have further questions, or if we've missed something, reach out and our team can assist.
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