I'm about to fit 9.5 on the rears of my mk2 and 8.5 on the front the arches are being cut and g60 plastic arches going on and on the rear I'm not sure whats happening as I'm not sure how much needs to be cut away I've got a friend doing it for me . If ur local to me ur more than welcome to come up and see how much he's removing and how he's doing it