Instructions are quite clear. My composites were not pre-drilled. The right-hand side spat fitted very nicely. The left-hand moulding appears to be different. The shorter ‘neck’ and support panel has less depth. A lot of fettling is required to get a good fit. Needed to take 5 mm off the neck of LH main wheel spat. Need to be very careful not to cross-thread the bolts in the rivnuts. They would be a real pain to replace! Used a homemade hole finder to align the front spat fixing holes and tow clamp holes. Used mobile phone on the floor to see into the spat, this was an enormous help.
More