JBA long tube headers are the number one choice for maximum performance gains and high RPM efficiency. Available in 409 or 304 Series Stainless Steel. These long tube designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra thick 3/8 one-piece flanges, and proprietary JBA FireconeA? merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible, so lowered cars do not drag the collectors.
JBA Tri Y Header 67-70 Mustang 390-428 FE Stick or Auto 1 3/4-2 1/2" Primary Raw 409 6655S
Fitment:
Ford Mustang Base 1967
Ford Mustang Base 1968
Ford Mustang Base 1969
Ford Mustang Base 1970
Ford Mustang Boss 429 1969
Ford Mustang Boss 429 1970
Ford Mustang Grande 1970
Ford Mustang Mach 1 1970
Ford Mustang Shelby GT-500 1967
Ford Mustang Shelby GT-500 1968
Ford Mustang Shelby GT-500 1969
Ford Mustang Shelby GT-500 1970
Ford Mustang Shelby GT-500KR 1968