You can also look at this...
The most advanced Throttle Controller for: Silverado/Sierra 1500 (2019+) Silverado/Sierra 2500/3500 (2020+) Yukon (2021+) Suburban (2021+) Tahoe (2021+) Escalade (2021+) The perfect match for our Throttle Bodies. Easy installation. Premium features. 1 YEAR WARRANT
www.solerengineering.com
I removed my pedal monster on my 3500 dually and installed this product on the 21 baby max and both 22 and 23 L5P's.
Main reason is that I didn't have to use my phone to adjust. You can, but why. Stopped at a light and turn it up. Slick roads, turn it down.
There are cheaper alternatives to the PM and Soler controllers, but I recommend getting one that is fail safe.