I have a one way diff in the front of my Sport 2 and like the other people have said it only allows the back brakes to do the braking. Sometimes when im in a drift and i want more sideways action i hit the brakes and because only rh back brakes are doing the braking its like applying the hand brake in a real car thus the back of the car swings round more... Its a little tricky to get the hang of it but it works pretty well!!!