If you read the Focus MK1 RS development info thread I posted on here, it mentions that It's more the suspension geometry that makes them torque steer rather than the diff alone. I've used Quaife ATB (and Peloquin, the US copy) in 200 ish hp Golfs and they don't suffer the same torque steer.

FRS mk1 development info thread :

https://passionford.com/forum/genera...info-pics.html