Big Louie, what can you say, looks like Rush exhaust has done it again They took the same great slip-on muffler and made it a half inch bigger for Touring models because lets face it the 4" muffler makes your bagger look tougher and adds the deep sound that is produced by the Big Twin Comes with 2.25" baffle Made from high grade steel then powdercoated in a rich black finish Works with any 4" Tip from Rush