
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
- Long Tube Headers
- 1967-1970 Mustang GT 390 w/ C6/4spd
- Stainless Steel
- 1-3/4" Primary Tubes
Notes: - For off-road racing use only. This product is not emissions legal
- Will not fir standard 390 cylinder head. Head flange is designed for 14 bolt 390 GT cylinder head only.
- Fits manual steering. Requires JBA 578-6656P power steering drop down bracket
- Matching H-pipe available
- Matching Y-pipe available
Achieve More Power With JBA Long Tube Headers
JBA long tube headers are dyno and race-proven to deliver the best 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, thick 3/8 in. one-piece flanges, and patented JBA Firecone merged collectors for smooth flow. JBA designs these header systems to give the maximum ground clearance possible so lowered cars do not drag the collectors on speed bumps. The headers include high-quality hardware and thorough instructions for a professional no-leak installation.
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