i am thinking about buying your product and want to know which program do i need. i have a 2000 gtp with headers, 3.2 s/c pulley, 1.9 rockers, slp exhaust and a dhp computer. now i need to know if me having the reprogramed computer already will be a problem?
Just to be sure, go to any pontiac dealer and have them reflash the computer back to stock before you tune, simple and effective. ;D
Forest
hpt probably wont be able to read your stock file correctly...hopefully a dealer can flash it back to stock & you can start over.
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
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