I bought a stage 1 zzp tune after installation my car feels slower I do not have the bottom in punch like I did with my OEM PCM thinking about changing it back out I have a 2004 Pontiac Grand Prix GTP comp G
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07-11-2020
I bought a stage 1 zzp tune after installation my car feels slower I do not have the bottom in punch like I did with my OEM PCM thinking about changing it back out I have a 2004 Pontiac Grand Prix GTP comp G
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