Warranty is void if you use anything other than a Mountune exhaust. However, I doubt you would have any issues with Ford as they have been replacing engines on modified cars that are not Mountune.
My RS is going tomorrow so I have x2 CS seat covers from Capital seating with the RS/Recaro emblem embroidered on the back that are available if anybody is interested? Both in excellent condition and not been on the car long. £70 the pair.
WBAC quoted me £24k, aye right.
Was in a Ford dealership last week and the trade in value is 25-28k. Was a bit of a shock that the price has suddenly dropped as much.