Chevy Tahoe 5.3 (2019 - 2021*)

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. --- 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. You can also select the option to purchase a new unlocked ECM, but you will need to have a tool or a dealer to perform an immobilizer relearn to use the new unlocked ECM. If you select the option for transmission tuning, you will need to have your transmission control module (TCM) unlocked by HP T