1996-2000 4.3L 5.0L 5.7L 7.4L Truck/SUV Performance Tune ServiceNumber_12582605 Module / primary service number:

Module / primary service number: 12582605

6L 2008-2024 GMC Savana 2

Module / primary service number: 12576162

Hollander lookup numbers: 590-00863

1996-2000 4.3L 5.0L 5.7L 7.4L Truck/SUV Performance Tune ServiceNumber_12582605 Module / primary service number:THIS IS FOR A SERVICE NOT A PHYSICAL PART. YOU SEND YOUR COMPUTER FOR PROGRAMMING UNLESS YOU PURCHASE ONE AT AN ADDITIONAL COST. We can make adjustments for various engine modifications as well as engine swaps. HP and Torque increases for a stock bolt on engine will be similar to the following 4. 3L 15HP 30 ft lb TQ 5. 7L 25HP 50 ft lb TQ 7. 4L 45HP 65 ft lb TQ You will send us your computer or we can provide you with one. If you wish for us to send