Improve your truck or SUV's performance and drivability with a Peitz Performance Delta tuning package! We developed these tunes with the overall driving experience in mind. Not only will you gain power at wide open throttle, but you will also feel the difference at part throttle via improved throttle response and quicker shifting. These packages are intended for stock L84 5.3 liter and L87 6.2 liter Silverados, Tahoes, and Suburbans.
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In order to tune your truck or SUV, you will need to have your engine control module (ECM) unlocked by HP Tuners. We can manage this for you if you select the option to get your ECM unlocked. If you already have an unlocked ECM, select the appropriate option. Whatever ECM you send for unlocking must have been the ECM that was removed from the vehicle that made it run. You CANNOT put a different ECM in your vehicle and run it while waiting to get your ECM back from HP Tuners.
If you select the option for transmission tuning, you will need to have your transmission control module (TCM) unlocked by HP Tuners as well. If you already have an unlocked TCM, select the appropriate option. It must be a supported service number. The supported service numbers are as follows: 24043414, 24043412, and 24294753. HP Tuners does not currently support TCMs with Serv#: 24049788 and #24056863.
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Once you install your unlocked ECM/TCM, simply plug your HP Tuners device directly into the OBDII Port and connect it to your Android or iPhone using the Tune Delivery Network App to upload your stock tune. Then you will receive your Peitz Performance tune!
Programming the Stock ECU with our calibration will net you up to 20 HP with just a flash! (results vary based on modifications and other variables).