Re: Chips and Tuners
My main experience is with 05+ cars, but with those tuners (SCT or Diablo) the tuner is 'married' to the car's computer. It actually downloads the stock tune and then flashes the new tune into the computer. It will not allow you to apply the same tune to multiple cars. To use the tuner on a different car, you have to restore the stock tune back into the car. This 'unlocks' the tuner for use on another car. This may not be the case on pre-05 cars (not sure)
In terms of wanting different tunes, your tune is configured to maximize the parts you have on the car. If you add (or delete) parts, you may want another tune for those parts. For example, you may have one tune that maximizes with stock exhaust, but if you add aftermarket exhaust, you might want a new one that takes advantage of free flowing exhaust. You might want one that maximizes HP or one that maximizes TQ. One tune won't cover all of the possible performance mod combinations.
American Muscle - Maximum Motorsports - Stack Racing - Koni - Tokico - H&R - Eibach - Hawk - Powerslot