The inserts in the front and back bumper, and also the strips down the side with the !.4 and RT logo in em are all grey and old looking, what can i use to blacken or spray em? Rather spray em but blackening would do for now if thats easier. And just out of curiosity, whats the name to actually use for the things im talking about? lol. knowing that wouldve made writing this thread alot easier! Also wanna colour code anything else i can ie door handles etc