1967 - 1970 JBA Mustang 390 GT Tri-Y Headers
JBA's Tri-Y long tube headers for 390 & 428 Mustangs give you the power you're looking for in a package that fits like no other. JBA's designs are application specific to best fit the engine and transmission combination in your Mustang. They also feature large 1 3/4 inch primaries that flow into 2 1/4 inch secondary tubes and terminate in a big 3 inch collector. They are also designed to give maximum ground clearance for street or track use. Features heavy duty stainless steel tubing, thick 3/8 inch laser cut flanges and JBA sealing dome collector, you don't have to worry about leaks caused by lesser materials. Please note: 1969 - 1970 cars with factory reinforced shock towers may have minor clearance issues. If you are running standard 390 heads versus 390 GT heads we can special order you correct headers for the same price.