S&S Cycle SS550-0703 Grand National 4" Slip-On Muffler Black w/Black End Cap for Street 15-UpFEATURES & BENEFITS 10. 5% more horsepower and 19. 8% more torque (with Stealth Air Cleaner Kit) Race inspired Grand National end cap and deeper exhaust note Stainless steel perforated baffle and high performance packing Guardian Black finish matches stock header pipe Includes removable dB Reducer (J2825 compliant) Made in the USA! FITMENT 2014 '20 HD Street XG500, XG750 and Street Rod Models