This rebuild kit restores the internals of a Straightline Performance carbon fiber muffler using premium high-temperature packing, stainless steel support mesh, high-tensile assembly tape, insulating wrap, and new stainless steel rivets. The carbon fiber outer tube is not included, so the kit is meant for refreshing the muffler you already own rather than replacing its shell. Everything needed to professionally rebuild the muffler's internals is in the box, which brings back the exhaust tone and performance the system was built for.

At 1 lb and 11 × 9 × 6 in, the kit is compact enough to store on a shelf until service day. The components are designed specifically for Straightline Performance mufflers, so the packing, mesh, tape, wrap, and rivets fit the intended assembly without guesswork.