1968 - 72 Corvette Exhaust system - big block - standard trans. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. 2 - 12 exhaust system Designed to replace factory system and connect to factory correct manifolds. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.