I dont have a Tom's rear. I have GFX rear. Its OEM. Under it I'm rocking s4play carbon fiber underbody diffuser..its subtle but clean. You can leave your roof and trunk spoiler unpainted but make sure you get it UV clear coated. The factory finish on them is garbage gel coat and in time itll start to peel and the CF will look like crap. After that you can't fix it.

Hey thanks man. I'm running Tom's side skirts with carbon fiber side splitters. Figments good, they actually go on top of your stock side skirts not an entire replacement.