Forsch Performance M8 Slip-On for Harley-Davidson Touring models. Featuring large 4-inch mufflers finished with race-inspired CNC machined billet end caps. Featuring Forsch's exclusive Angry M8 2.0" x 2.5" Stepped Baffle Core is tuned to give your 2017-2023 bagger the maximum deep and aggressive roar while still not requiring an aftermarket tuner, and keep excellent bottom-end torque