yup, im doing the same thing. What you gotta do is get the Gen 4.5 bumper and signal lamps as well. Some people say you need the 4.5 fenders as well, some dont. There are a bunch of posts on this topic too. Even a small DIY about it
I actually JUST bought a pair off of thakidd, and i have a pair of signal lamps from when i went to clear corners, and the gen 4.5 lamps are a lot taller (if you light up the top edges, there is a good inch more on the bottom)
oh, and if you wanna know what they look like lit...
Its actually more white than blue, for some reason my camera picked up more white than blue