Fitments Years Make Model 2017 - 2019 KTM 500 EXC-F 2017 - 2018 Husqvarna FE 501 S 2017 - 2019 Husqvarna FE 501 VideoFeatures2-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 insideAirbox kits include a complete airbox that increases the volume of the intake, wash plug, cage and all mounting hardwareIncludes a rigid, lightweight billet aluminum cageSpecs Base Color: Orange Model: Powerflow Riding Style: Adventure Touring / Dual-Sport Features: Backfire Resistant Layer Filter Media Material: Foam Color/Finish: Orange Product Name: Air Filter Riding Style: Off-Road Units: Each Features: Washable Filter Media Style: Dual-LayerApproximate Package Weight & Dimensions Weight: 0.15 Height: 2.7 Length: 10.1 Width: 9.5