JBA Performance Exhaust 6655SJS 1 3/4 Header Long Tube Stainless Steel 67-70 Mustang 390/427/428 Co. JBA Performance Exhaust 6655SJS 1 3/4 Header Long Tube Stainless Steel 67-70 Mu. JBA Racing Headers 6655SJS 1 3/4 Long Tube Stainless Steel 67-70 Mustang 3. JBA long tube headers are the number one choice for maximum performance gains and high RPM.
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