1962-67 Chevy II Nova LS1 All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. This huge 3" diameter 304 Stainless steel Exhaust System. Designed to fit Stainless Works headers with 3" slip fit collectors (P/N NVLS1). The front leads flow into the X-pipe then flows into a set of dual chambered turbo mufflers out to a dual set of over-axle tailpipes that exits behind rear tire between quarter panel and leaf spring. All clamps and hangers needed to install this system on your car are included. Mill finish, All TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.