i've been searchin around and i've had about 10k answers so hopefully someone can clear it up.
can a stock mustang ecu be reprogrammed without any chips or tuners? or is one or the other necessary to make any adjustments at all? some guy i know claimed a shop dyno tuned his car without him buying a chip or tuner...
can a stock mustang ecu be reprogrammed without any chips or tuners? or is one or the other necessary to make any adjustments at all? some guy i know claimed a shop dyno tuned his car without him buying a chip or tuner...