Saw that little Diablo Tuner box online, the 5.3 model. Ordered it. Showed up a few days later – tiny thing, honestly. Little device and a USB cable. Instructions were mostly pictures, which was kinda good ‘cause I’m not into reading novels before I start. https://kralmod.com/diablo-tuner-5-3-performance-tuning-guide-easy-steps-you-need/