Ceramic coatings inside and outside of the head pipe, mid pipe, and tail pipe reduce engine temperature and extend engine life. Ceramic also resists flaking, bluing and rust. CNC billet aluminum end cap complete with a USFS approved screen-type spark arrestor. Sealed inlet and cap produces a leakless seal (industry first). Stainless steel pop rivets. 6 month's mfr warranty. Designed for all-out maximum racing performance. Features a standard race core silencer. Sold with performance muffler packing