I had the gp thunders in for a while, I wasn't satisfied. I recently got the lux LEDs, the are waaaay better and brighter... A world apart from the GP's. Yea they weren't cheap, but they are most def as close to oem... And they actually compete with other car manufacturer LEDs you see on the road. Sooo glad I upgraded, I get so many double takes on my ride now... Not that I get off on that stuff or anything :-P lol