Originally Posted by Thrasher13
OK I was just wondering the differences in having your ecu flashed, a tune, a proformance chip, and a tuner. Would all of these together make alot of power? Or are some of these the same? What's the benefits of one to another?
ECU flashing is for newer cars.
A performance chip plugs into your ECU and changes the factory tune.
There is no "tuner' per se for these older Mustangs.
What is available is either in chip or piggyback form.
My personal favorite is the AFM PMS piggyback tuner, there is a sticky thread about it in this 79-95 forum.
None of them will "make" a lot of power. All they will do is to tune what you have.
The stock ECU on the 89-95 Mustangs will handle lots of engine mods before you need to worry about having it tuned. Any expenditure before that is a waste of money.