JBA Long Tube Headers 1-1/2" Tri-Y Stainless Steel Mustang 289/302 1965-1970



  • Stainless Steel Construction
  • Merged Collector
  • One-Piece Flanges
  • Improves Horsepower
MSRP $615.40
You save 9%

JBA Stainless Steel 1-1/2" Tri-Y Long Tube Headers for 1965, 1966, 1967, 1968, 1969 and 1970 Mustangs with a 289 or 302 engine.

Maximize your 289 or 302 engine's exhaust scavenging with JBA Stainless Steel 1-1/2" Tri-Y Long Tube Headers 6651S for 1965-1970 Mustangs. Designed to match synchronization of the engine firing order, these headers will improve torque and horsepower. 

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

JBA engineered the stainless steel, mandrel-bent primary tubes with thick 3/8" laser-cut flanges for a no-leak performance. The Firecone merged collector featured with these Tri-Y Headers is patented by JBA, including O2 sensor provisions for proper connection. The oversized exhaust ports will accommodate ported cylinder heads on your 289 or 302 engine.

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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