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  1. Gen1 Powertrain
    Is it possible to, say, use tunerpro or any other application to read/edit/write customer calibration files to the PCM? I am about to get HP Tuners, but I also see people selling these BNR/EFI handheld devices for like, $150ish all over the place. If I can avoid spending $400+ for HP tuners and...
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