2004-07 Cadillac CTS-V performance 304 stainless steel exhaust system with X-pipe for use with Stainless Works Headers. 3″ CNC Mandrel bent exhaust and high flow metal matrix catalytic converters. Slip joint connectors ensure leak proof seal, dual chambered turbo mufflers deliver maximum performance and deep aggressive sound. 4″ polished slash cut rolled edge tips included. When used with Stainless Works headers and a cold air intake, gains of up to 50 RWHP are attainable.