Gain in you 3Vmustang 2005-10 14-22 rear wheel horsepower over stock. StainlessThese new BBK 2005-2010 Mustang GT Long Tube stainless steel headers offer great power gains over the restrictive factory exhaust headers. Made out of high quality 304 stainless steel these full length headers are designed as a direct bolt on and when used with our short mid pipes they will bolt on to the existing factory or after market cat-back system. ALL BBK exhaust headers are pressure tested to ensure leak free performance. Each Stainless Steel Long Tube exhaust header for the 2005-2010 Mustang GT has been designed and dyno tested at the BBK headquarters in Southern California to Maximize performance.