3″ HP-Plus® Slip-On Mufflers – Slash-Cut – Chrome – XL

Patented steel construction baffle now features more high-temperature fiberglass packing, provides significant gains in horsepower and torque and exhibits a distinctive, throaty sound; Use all factory mounting hardware; OEM heat shields may be retained; U.S. patent 5,173,576; Made in the U.S.A.; ECM units on fuel-injected models need to be recalibrated if used with free-flowing air cleaners and/or modified engines. Muffler shells may discolor if ECM units are not calibrated correctly