TWIN AIR Replacement Backfire Air Filter 154520N ONLY FOR POWERFLOW KIT Bearing Carrier Front of seat width: 8"

Front of seat width: 8"

Use with optional FTEcu tuning systems alongside the Graves' slip-on map for 7-8 hp gains and DRAMATIC ride improvement across the power band

Slim profile keeps the unit away from the rider’s leg

Muffler body has proprietary technology to prevent bluing making this slip-on virtually blue proof

TWIN AIR Replacement Backfire Air Filter 154520N ONLY FOR POWERFLOW KIT Bearing Carrier Front of seat width: 8"2 stroke kits include a Twin Air filter and a rigid, lightweight, billet aluminum cage that replaces the flimsy plastic stock cage and provides a tight seal to the airbox4 stroke kit replaces the air restricting stock backfire screen with a special backfire resistant layer of foam laminated to the inside Airbox kits include a complete airbox that increases the volume of the intake, wash plug, cage and all mounting hardware Includes a rigid,