the discs arent that much bigger bit its a welcome change and defo an improvement if you go for some better pads , grooved discs , master cyclinder stopper and braided brake lines. will be alot better. Had a look at doing this on my new n/a and a few things i noticed first off is the brake sheild had to come off as its designed for the smaller disc. ( usually have to get pliers and rip it off since the stupid torque bolts just round ) and that once you have the bigger caliper carrier fitted 13" wheels dont fit on. Go for it. Russell