Just installed mine again tonight. Had the TWINtake pipes ceramic coated (not that it'll help much, but i'll do the downpipe next week when the car's in the shop for the LSD & mounts). Only cost £40, so thought I'd do it.
Engine cover was dremel'ed down, paint prep'd and painted in matte black. I quite like things looking monochrome & simple. Was considering red, but thought it would be OTT. I like the whole OEM+ kind of look.