1964 - 67 Corvette Exhaust system - small block 327 HP. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. 2 12 system for 2 12 manifolds. 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.