Let your Indian rumble with these Freedom Performance slip-on mufflers. Easy bolt-on installation on the stock headers. Combat and American Outlaw mufflers are 4 1/2" (11.4 cm) in diameter, Racing, Eagle and Liberty slip-ons are 4" (10.2 cm). All slip-ons feature unique two-step baffles with acoustic packing for a deep rich tone, unmatched performance and a crisp throttle response. Baffles are removable. When you really want to unleash the full power of your Indian motorcycle the same mufflers fit on Freedom's separately available True Dual header kits. True Dual header kits feature 2 1/2" (6.4 cm) outer diameter 220 degree wrap around blue-proof heat shields. All slip-on mufflers are sold in sets for left and right.