1968-72 Chevelle, Big Block exhaust system. Made from 304, 2-1/2" stainless steel, for maximum corrosion resistance. All tubes are CNC mandrel bent for optimal flow. Designed to fit factory manifolds. With lead pipes sleeved and flared with flanges and Dual turbo Chambered mufflers. No resonators and over-axle pipes flow right into tailpipes that exit into stock location. System is for 1968-72 big block Chevelle, Mill finish, All TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.