Yes mate thats mine.
At the moment I change the fronts monthly whilst we do some development work on stuff.
It has a bias pedal box up front and did run for years on standard cossie discs and RST S2 calipers with expensive mintex competition pads.
Over the last few months its had anything from 260mm discs to 305mm discs, its currently on 285mm discs with aloy 6 pot calipers, but I can't keep them lol. All under the 15" wheel yes
The rears are standard sierra calipers and non vented discs, but I do have some 300mm discs to go with the std calipers just cant be bothered to fit them yet.