Last I would also say their numbers are a bit exaggerated on the widening. Rear widens 40mm (+/- 1-2mm), measuring from the lip of the factory fender to the *outer* lip of the moonbeam flare. note the lip built in to the flare, which is about 10mm wide. obviously it can be trimmed, but to clear the inside without trimming you are talking maybe an extra 30mm or so of extra clearance.