I trial fitted one of the MK seats today and I assume I will need some spacers where the bolts go into the seats otherwise the round bit where your ass goes is the lowest bit so I guess I need to raise it up on spacers.

Rich.

could always make a subframe to fit them too, leigh did that with the ones i bought off him and they fit geat and look tidy.

either that or you could always shape the floor around the seat