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. The kit include a pre-oiled Twin Air filter, a special aluminum cage and all necessary mounting hardware.

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.

• Replacement air filter p/n 791809