hi simon it all depends on how low you want the car...mine is fine when i have my -45mm springs on the car and doesnt catch at all...but now i have put my ice back in for the shows...it catches on the back like MAD!!
my arches have already been cut back a few mm...but they need to go back more especially if i keep the car that low...
however, im off into the garage now to swap the springs for a pair of -25mm ones and hopefully that should raise the car enough to stop it from scraping
this is how low mine was at ford fair:
BTW do u know the offset of the rims? mine are ET35 IIRC or 37
bassboy