Moose Universal Stainless Repack Kit RT-STLKIT Louder exhaust does not mean more horsepower Blown-out packing causes exhaust turbulence and increased backpressure; this reduces horsepower Repack your silencer with this pro-quality, three-layer packing system and restore the power youve blown out Also great for getting in compliance with new sound laws Kit contains 1/4 thick 60 x 20 glass mat, 7 x 20 stainless wool, 8 x 20 stainless mesh, 12 3/16 rivets, and full instructions