1968-72 Chevelle, Small Block, Big Block hot rod exhaust system. Made from 304, 2-1/2" stainless steel, for maximum corrosion resistance. All tubes are CNC mandrel bent for optimal flow. 3 bolt flange or performance connect. Designed to work with Stainless Works and other aftermarket headers. X-pipe flows, Straight into Dual S-tube turbo mufflers, and the tailpipes flow right out the back of the car. System is for 1968-72 Chevelle, Small Block, Big Block, Mill finish, All TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.