Featuring large 4-inch mufflers finished with race-inspired CNC machined billet end caps, Eliminator 400s are tuned to give Harley-Davidson baggers a deep and aggressive roar. CNC Machined Billet End Caps. Large 4-inch Round Muffler Body. Fits Saddlebags with Extended Skirts. Optional Quiet Baffles Available. Fits: 2017 TO 2020 FLHT/FLHTK/FLHR/FLHX/FLTRX/FLTRU/FLTRK Dresser Models.