DC Sports Polished Header (03-06 Nissan 350z/ 03-06 Infiniti G35)DC Sports 3 1 Performance Header for the 03 06 Nissan 350Z G35 is constructed from quality T 304, mandrel bent stainless steel piping and CNC machined flanges. Every header is tig welded by hand, both outside and inside of any joints. Larger than stock diameter piping, mandrel bends, and equal length primary runners insures a smooth and unrestricted path for exhaust gases. This leads to improved HP and TQ throughout your entire power band. Lastly, our