JBA dominated the 2004 SEMA show with the industry's first long tube header and exhaust package for the ‘05 Mustang GT. Crowds of Mustang enthusiasts filled the JBA exhibit to see these exciting new products. These new headers take full advantage of the redesigned chassis and new engine. The trick "D" port aluminum heads on the 4.6L 3v can breathe easier through JBA's 1.625" mandrel-bent stainless steel primaries freeing up massive amounts of horsepower and torque. JBA's one-piece .375" CNC laser-cut flanges make a tight and durable seal for trouble-free performance. The pipes terminate in a 9" long collector that houses JBA's patented Firecone® merge device for enhanced scavenging of exhaust gasses. These headers fit perfectly inside the frame with no loss in ground clearance.