2009 - 15 Stainless Works, Cadillac CTS - V sedan 3 exhaust system. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. Dual exhaust with x - pipe, Turbo S - Tube mufflers, and 4 conical double wall slash cut tips. For use with Stainless Works Performance connect CTS - V headers. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.