Go big or go home is what Freedom Performance had in mind when the R&D team had these mufflers brought to life. Their American Outlaw slip-ons feature a 4.5 muffler body that is equipped with their bandit baffles that are tripped stepped to assist with performance as well as give the bike a distinct sound. The note created is a deep thundering sound when cracking the throttle to have you feeling like a real outlaw and being heard as you should. Megaphone with a 4-1/2" outlet Bandit baffles, triple step. First step 1-7/8" solid tube for scavenging power and torque, second step transitions to 2-1/2" O.D. #120 louvered tube to propel into the final chamber which is a 3" O.D. perforated with over 200 holes orchestrating a very deep thundering rumble Removable baffle 1-year manufacturer's warranty