my take on it is when its painted black it gives it a more agressive look and makes it look a litter newer since cars out now such as the newer Audi's etc. have it this way, and also looks sportier like how the Mustang Cobra's have it black. When it is painted to match the car it looks more like you bought an aftermarket kit for it and are trying to "G" it up ie. lower it, put dual exhaust on it etc. like what some ppl do to cavaliers and whatnot. Painted black just makes it look sportier and stock. It all depends on what look your going for. my two pennies.
