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HPT 2017+ GM 8/10 Speed Auto T87A TCM Unlock Only (*Must Mail in PCM*)
HP Tuners
Please be advised that no returns, cancellations, or refunds allowed on Special Orders once it has been placed on order regardless of the circumstances.
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Please be advised that no returns, cancellations, or refunds allowed on Special Orders once it has been placed on order regardless of the circumstances.
Please be advised that no returns, cancellations, or refunds allowed on Special Orders once it has been placed on order regardless of the circumstances.
Our upgrade-only option will upgrade your TCM to enable tuning. Send us your TCM and we'll send it back to you fully upgraded for tuning. Please include VIN. This service takes 1-3 business days to complete (not including shipping times).
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