Guys.. help me, I'm going to paint my kits tomorrow, and I would like to know which color for the bottom part of the trim matches with the real kit since I'm going to buy a retail front bumper and use replica kits for the sides and the rear. I've did few searches, some people said it's A39 and some said 87U. It really got me confused, so which of these two is the best match ? or is it something else ?