Peace be upon you. I have an HP3 device. I offer car inspection and a car maintenance workshop. Things I can do for you at special prices: = Deleting the system for switching from 4 cylinders to 8 cylinders = = Unlocking speed limit or setting speed limit = Deleting catalytic converters And if you have a Tahoe or GMC model 2015 or 2016, with or without catalytic converters installed, I have a programming for it, which is: - Removing the rev limiter - ⁠Electric N cutoff - ⁠Throttle response - P0300 misfire - Gear shift cut, upshifts I will be considerate with the price, and God willing, you will be satisfied. If you want to see the programming, send me a WhatsApp and I will send you a video.