I recently bought a 96 T-Bird with a 96 Mustang GT 4.6/rear axle 3.73 ratio. It has the common mods cold air intake kit, x-pipe flowaster series 60 mufflers. When the motor swap was done was the mustang computer used or since both cars were 4.6's was it a plug and play situation. Any info greatly appreciated. Wanna start gettin performance parts just need some tech help. Thanks Dan