Not sure of exact mods but a good vid..
Does the GT500 sound like its got a pulley>?
I dont think so ...:shrug: I could be wrong
YouTube - HD: Ford Mustang GT500 "600 HP" vs BMW M5 ECU exhaust race 2/2
YouTube - HD: Ford Mustang GT500 "600 HP" vs BMW M5 ECU exhaust 1/2
Does the GT500 sound like its got a pulley>?
I dont think so ...:shrug: I could be wrong
YouTube - HD: Ford Mustang GT500 "600 HP" vs BMW M5 ECU exhaust race 2/2
YouTube - HD: Ford Mustang GT500 "600 HP" vs BMW M5 ECU exhaust 1/2