How it Works:
The COBB Custom Traction Control works in a manner similar to the factory offering, however it works much better and faster to minimize wheel slip and keep the car planted at all times. At it's simplest the software is looking at the various wheel speed sensors to determine if one is moving more quickly than others. When it detects that one wheel is moving at a higher speed than another, this is typically an indication of the wheel slipping. There are some instances where the wheels will move at different speeds (around corners for instance) but this is something tuned for in the map itself (you shouldn't need to worry about adjusting it to go around a corner properly). As the ECU sees the difference increase and detects a slip, it will reduce the amount of torque the engine is producing, this should slow down the wheel enough to grab on to the pavement again so you can continue accelerating. If it isn't able to regain traction, the ECU will continue to reduce power until it sees traction again. This means that with the traction control on the default setting where it minimizes any wheel spin the car is hypothetically the fastest as no wheel speed is ever lost.