JBA Performance Exhaust 6655S 1 3/4 Header Long Tube Stainless Steel 67-70 Must
JBA Performance Exhaust 6655S 1 3/4 Header Long Tube Stainless Steel 67-70 Mustang 390/427/428 Cobr. JBA Performance Exhaust 6655S 1 3/4 Header Long Tube Stainless Steel 67-70 Must. JBA Racing Headers 6655S 1 3/4 Long Tube Stainless Steel 67-70 Mustang 390. JBA long tube headers are the number one choice for maximum performance gains and high RPM. Processing begins as soon as an order has been placed, therefore we cannot change, cancel or modify orders once they have been confirmed.