New OEM 1987 GM Calibration ABLS Unit Prom MEMCAL ECU - Part # 16066725

• Important Notice for ECU/Computer Chip Purchases

Before making your selection, please be aware that while we provide general information on year, make, and model compatibility, the most important factor is ensuring that the part number, chip number, or bin file number matches what is currently installed in your vehicle. If the numbers align, you are good to go!

We also want to clarify our return policy:

• Once you receive your ECU or computer chip, it is yours to keep.
• We do not accept returns for items purchased for diagnostic purposes (i.e., buying to test whether the ECU or chip is the issue).
• Although we have a generally open return policy, we strictly enforce a no-return policy on ECUs, programmers, and related items.
• Please ensure you carefully verify your part selection before completing your purchase.