JBA Long Tube Headers 1-3/4" Stainless Steel T-5/ TKO/ T-56 Transmission Mustang 302 1965-1970



  • Stainless Steel Construction
  • Increases Horsepower
  • 3/8" Flanges
  • Merged Collector
MSRP $784.18
You save 15%

JBA Stainless Steel 1-3/4" Long Tube Headers for 1965, 1966, 1967, 1968, 1969 and 1970 302 Mustangs equipped with a T-5, TKO or T-56 Transmission.

Built for 1965-1970 302 Mustangs equipped with a T-5, TKO or T-56 Transmission, these JBA Stainless Steel 1-3/4" Long Tube Headers 6611S are sure to improve horsepower and torque gains. Throughout all RPM ranges, you gain high efficiency and smoother exhaust flow. As JBA constructs the stainless steel headers, one-piece 3/8" flanges are laser-cut for leak-proof performance. Additionally, JBA's Firecone merged collected improves the exhaust scavenging and includes O2 sensor provisions.

Features and Benefits:
- 3/8 thick CNC laser-cut flanges
- Prevents leaks caused by warping
- Patented JBA Firecone merged collector
- Increased hp/tq improved exhaust scavenging
- O2 sensor provisions 
- Standard on EFI headers for proper connection
- Large diameter mandrel-bent stainless steel primary tubes
- Maximum flow and high RPM efficiency
- Oversized exhaust ports
- Accommodates ported cylinder heads

Please Note: Standard on 4-1 long tube V8 applications. Not available on Tri-Y headers.

California Residents: Proposition 65 Warning

Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:

  • 1965 and older U.S. manufactured California certified vehicles
  • 1967 and older U.S. manufactured federally certified vehicles

Installation Difficulty


Intermediate skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

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