Skyline Engine Colors??

Hey everyone-
Been out of the loop for a month or so but I have been reading AF! Anyway Im finally getting around to building my Aoshima Skyline GTR R-32 Veilside Combat. Here's the question-I have several pictures of the real engine but in the pictures there are two different colors-red and black. The instructions are all in Japanese so Im not sure which color is right for the R32?? Black or Red??

Thanks,
Scott

R32 engine covers are black, but you can put any color you like.