Just got done doing this conversion. The mechanics of it are quite simple, the rear thread in flex hose works fine on a front caliper, same thread as the banjo bolt for front installation and the front and rear caliper mounting brackets are the same. Obviously no more hand brake. First drive around the neighborhood was inconclusive, pedal travel seemed too far and pedal feel was very mushy as if I had air in the system but I don't. The more I drove it the more the mushiness was going away. I really need to get it out for a long drive to get the brakes to settle in. The pads are brand new but not the same brand as the fronts....MWB performance pads on the front and Ferodo street pads on the back. I think braking is better, as it should be but I need more seat time. Also can easily compare to my other X that has stock brakes. If anyone else has done this, for street or track, I'd like to hear your views. I'll give further feedback as I get more miles on it but hard to motivate yourself when it's 39 degrees out, even if sunny.