HP Tuners GM Credit
Vendor: The Tuning School
Credit purchases are not instant.
Credit purchases over 12 need to be verified before app key is generated.
All credit sales are final and are non-refundable, please take care in providing correct information.
GM credits to be used with your HP Tuners Standard or Pro unit. Most vehicles require two credits; however, some do require additional. To see a list of supported vehicles and the amount of credits needed per vehicle or per year/model, please visit HP Tuner's Supported Vehicles Listing.