[whyant]

sorry - the right header from the doner and is mounted on the left and vice versa. So to fit the 5.0 motor in the car the header flow is reversed and the exhaust exits the engine front. I used mac headers and it sounds and runs SWEET - but Ca BAR will not accept them- and the 88 mustang had pre cats that the ffr build kit does not have. Logic would say that makes no difference but the firing order change may make them a little less efficent.