I had a racelogic traction control system on my former car. Was a nice bit of kit. I fitted the unit, it basically wires into the ABS ecu and onto the 4 injectors. By calculating the speed of each wheel and determining when there was less traction, it would cut the fuel to the injectors until said wheel regains traction. The system aint that hard to fit, its the setting up. It does have software with it which you can use for all sort of datalogging, setting up, rev cut, full throttle shift aswell as the launch control, but for me average joe, i couldnt make head nor tail of it. All this dont via laptop.