1801-0154 Patented steel construction baffle now features more high-temperature fiberglass packing, provides significant gains in horsepower and torque and exhibits a distinctive, throaty soundUse all factory mounting hardwareOEM heat shields may be retainedU.S. patent 5,173,576Made 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 FITMENT INFORMATIONSportster XL04 upPart Number : 1801-0154 1801-0154 Patented steel construction baffle now features more high-temperature fiberglass packing, provides significant gains in horsepower and torque and exhibits a distinctive, throaty soundUse all factory mounting hardwareOEM heat shields may be retainedU.S. patent 5,173,576Made 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 FITMENT INFORMATIONSportster XL04 up **** PLEASE NOTE ***** : 1801-0154 These are performance and custom aftermarket products sourced to match or exceed original specifications as an alternative to the OEM version. Any Harley-Davidson part numbers referenced are for identification purposes only.
