JBA is proud to announce the release of new smog legal Cat4ward headers for the 05 Mustang GT. These headers feature JBA's standard heavy-duty construction and patented technology to deliver the performance and reliability you expect. Beginning with oversized D shaped ports for the 3v heads and smooth flowing mandrel-bent tubing, these headers open up the exhaust for increased performance and efficiency without compromising the factory emission equipment. Extra thick .375 CNC laser-cut flanges ensure a tight seal and trouble free performance without leaks from warping. Each kit comes complete with quality hardware, gaskets and instructions for a complete installation.
Direct replacement of the stock exhaust manifolds, header bolts up to the existing stock Y-Pipe/Crossover pipe. Installation requires modification to exhaust system. Takes between 3 And 6 hours depending on application. All hardware, gaskets, and instructions included.
50 State Smog Legal!
Feel free to place an order online and use our secure checkout 24 hours a day, 7 days a week, 365 days a year! Call Us M-F 9am-6pm PST @ (858) 527-2917.