JBA Cat4ward Short Headers 1 5/8 409 stainless steel 2005+ Mustang.

JBA is proud to announce the release of new smog legal Cat4ward® headers for the 05 Mustang GT. As featured on the Vortech Supercharged 4.6L 3v engine displayed at the SEMA show, 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 new 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.