Horse Sense:If a handheld tuner isn't your style, SCT also offers a solution to tune with the Android or iOS devices, the iTSX (PN 4015). If you'd rather have a dedicated color screen, the Livewire TS ...
Tuning is the origin of hot rodding. Back in the day, Pontiac owners with a taste for performance would dial in their cars' air/fuel ratios and timing among other things to squeeze a few more ponies ...