Quality; performance and a rich sound in a convemient slip-on package Boost torque and maximum horsepower Slip-On mufflers feature a stainless steel mid-pipe Muffler body and fittings are TIG-welded stainless steel AISI 304 Brushed aluminum alloy, technical carbon fiber or satin-finish titanium muffler sleeve available Mounting strap and frame attachment brackets are aluminum alloy