Experience a new level of performance with Stealth Performance Products' tuning solutions, exclusively designed for the GMC Yukon 6.2L (2019-2021). With the stock L87 6.2L Yukons in mind, we meticulously developed these tunes to elevate your overall driving experience. Feel the surge of power at wide open throttle and notice the refined improvements at the bottom end, with enhanced throttle response and more rapid shifting. Additionally, you'll notice the low-end torque production, ensuring your Yukon performs at its peak potential.
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).
An RTD is a "remote tuning device". Simply put, this device allows us to easily send our tunes over to you. Even more than that, it allows you to data log after our tune is installed to make sure everything is good to go!
A tune, otherwise known as calibration, is a file written to the computer in your vehicle that runs your engine. This control module is sometimes referred to as the Engine Control Module (ECM), Power Control Module (PCM), or Engine Control Unit (ECU).
To tune your vehicle, your engine control module (ECM) must be unlocked. We can handle this for you through HP Tuners. If your ECM is already unlocked or you'd prefer to buy a new unlocked ECM, you have those options as well. Keep in mind, if you want to buy a new unlocked ECM vs having your current ECM unlocked you will need to do an immobilizer relearn which will require a specialized tool or dealer assistance.
For the transmission tuning, the transmission control module (TCM) must be unlocked as well. We also provide this service for you through HP Tuners. If your TCM is already unlocked or you'd prefer to buy a new unlocked TCM, you have those options as well. To unlock your TCM, we will ask for specific information after purchase in order to ensure it is properly programmed for smooth integration.
The tuning process will void the factory warranty related to that modification. For example, if your windows stopped rolling up, this should still be covered since it is not controlled by the ECM.