S&S Cycle Grand National Mufflers - Black 550-0690

Race inspired Grand National endcapHigh flowing baffle designAggressive sound and excellent horsepowerRemovable dB reducerMade in USA!

Improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately)Race-inspired designRemovable dB reducer for back pressure and sound tuningMeet J2825 levels for soundAll...

10.5% more horsepower and 19.8% more torque (with Stealth Air Cleaner Kit)Includes stainless steel perforated baffle and high performance packingRace inspired Grand National endcapBlack ceramic...

Up to 17% more horsepower and 9% more torque (when used with Stealth Air Cleaner Kit)Race-inspired designStainless Steel perforated baffle design with removable dB reducerDeep performance rumbleMade...