Increase the horsepower of ANY stock Big Twin with these mufflers. Alone they can add up to 8 horses and 5 ft. lb. of torque! Great for big inch engines with excellent low and midrange torque. NOTE: Changes to the exhaust may require rejetting or recalibration of your EFI. The mufflers do not conform to U.S. EPA noise emission standards. When ordering, please state the make, model and engine the pipes are being ordered for.
For pricing information, please fill out this request form or call 1.877.287.6676.