PCMforless or madz28
You can send in your PCM and wait for it to be tuned and sent back, or you can buy a OBD cable and load the tunes via email. www.aldlcable.com
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I once had a mailorder tune from MadTuner and it was garbage. However one out say every hundred is going to have a bad experience here and there. With that said you honestly cannot go wrong with either because if you look around there are alot of happy customers from both. Both tuners know the LT1's well. PCMforless has been very good to me so they get my vote in the end.
You can send in your PCM and wait for it to be tuned and sent back, or you can buy a OBD cable and load the tunes via email. www.aldlcable.com
94-95 you need the OBD-I cable, 96-97 you need OBD-II.
Just do a little research and you'll figure it out. All the info you need to do this is on these two sites:
www.aldlcable.com
www.madtuner.com





