don't do it is the common consensus.
LRO magazine discussed this some time ago, and the view was it would make it horrendously over braked and unstable.
That's interesting as most newer cars, my old Yeti included are lighter and have larger front disc brakes (mine were up rated to 312mm dis and had disc brakes at the back. That wasn't unstable. Or over braked. One Yeti I know of, a 1.8tsi, which has been slightly modified-has in excess of 320bhp (standard 160bhp) has Porsche front brakes fitted.
So why would it make a heavier car over braked and unstable?