Well, the C63 fenders follow function. They are much wider than the C43 fenders, because the C63 has a wider track. If you put them on a C43 it would look ridiculous w/o widening the underlying track. You could push out the wheels with spacers, but that messes up your suspension geometry. The C63 fenders also would no longer line up with the C43 bumper, so you would need to install the C63 bumper as well, and that's where it starts to get difficult, because the C63 front is actually longer to fit the V8, so next problem is the hood. Unless there are some replicas from an aftermarket company, you are better off trading in your C43 for a C63.
Last edited by superswiss; Oct 14, 2021 at 02:21 AM.