JBA Exhaust Headers for Ford Mustang V8 289 CID for 1964-1973 - 6612S bump-stops 4578 378AB

4578 378AB

9L V8 1978 - 1980 Ford F-100 Ranger Lariat 302/5

For 37° Adapter Fitting Cones & Seats

4L V8 1964 - 1966 Ford F-350   361/5

8L V10 2010 Ford F-350 Super Duty Harley-Davidson Edition 391/6

JBA Exhaust Headers for Ford Mustang V8 289 CID for 1964-1973 - 6612S bump-stops 4578 378ABOverview: 65 73 Mustang Long Tube 260 351 Raw 409 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,