Originally Posted by
Ridgey
Compbrake also do a 300mm kit with everything you need.
They are overkill for a RWD Cossie, I'm having to run cheap standard pads on rear to prevent lockups, but my abs doesn't work

I had the same problem with rears locking up as soon as i put mine on too, Turned out to be one of the brake compensators, Sorted that and its now fine on track with race pads, so might be worth replacing on yours on the off chance