One of the worst feelings is acquiring an exhaust system of some sort and not being content with your purchase. That seems to be a major issue with the Milwaukee Eight touring models. Now keep in mind the M8 engine differs from the Twin Cam motors as they are built differently so don't compare apples to oranges when researching. These 4" DBX40 slip-ons are equipped with Rinehart's 2.5" performance baffles that can get you close to that "old school" Twin Cam potato sound that's desired so much. Chrome with black end caps 2.5" performance baffles equipped Proprietary 2.5" baffle that's built to increase and enhance the sound of the Milwaukee Eight engine while providing a free flowing exhaust which is the perfect recipe to unlock more horsepower and torque gains Mufflers are equipped with Rinehart Racing popular Tradition end caps