Clearly the Morgan factory fit brakes are spec'd down to a price rather than upto a standard. I suggest that is why they are not fitted to the Cosworth engine car, Mulfab were tasked with providing a superior alternative and came up with the superb Hi-spec calipers and modified BMW 840/850 discs. I was not happy with "Indian" jobs on my +4 and changed them out for this Mulfab alternative and the car stops on a sixpence, sorry 2.5P. I dont think you can drive the car long enough or hard enough to identify any deterioration in braking performance. Money well spent!