i had blue underglow on my car a while back. im not gonna lie, i liked it. ive seen a few cars with the multi-colored led's, and honestly i dont like them. i dont like led's under a car at all. if you're going to put anything under your car, i suggest streetglow neons. and dont let people on here talk you out of it, its your car, do what you want. people on here will say it looks horrible, because of the area they're in. most people on this website are from california, where the cleaner your car, the better. fabs in other places may be different. for example, around here, things that may be ricey in other places, are badass. underglow, lambo doors, loud exhaust, are all picker-uppers for your car here. so, if its gonna be frowned upon by everyone who's looking at your car, i wouldnt do it. if you think everyone will like it, go for it.