Vance & Hines Adventure Hi-Output 450 Slip-On Muffler For Harley Pan America Vance & Hines Adventure Hi-Output 450 has a new rugged look with its round, stepped-style Hi-Output canister. This muffler delivers a strong increase in horsepower and torque vs the bike's stock Revolution Max exhaust system. The new brushed finish will enhance the bike's style over the stock black exhaust and the overall weight will be reduced by nearly 6 lbs. Features: Designed Specifically for the Revolution Max 1250 motor Cutting-Edge Baffle Design delivering bold rumble Meets SAE Standard J2825 sound levels Stepped 4.5-inch Diameter Gains of 5 Horsepower and 5 ft lbs Torque 304 Stainless Steel CNC Machined Billet End Cap Improved rider boot clearance Compatible with OEM saddlebags and center stand 50-State Emissions Compliant