I've read all the threads here I could find regarding the different PIAA kits and their various mounting scenarios. At this point, I can get any one of the three above mentioned kits for fairly cheap. Here's what I understand so far:
The 540 lights are kinda too large for our stock openings. I know there's a kit with brackets to mount them, but I can only get my hands on the base kit without the special brackets. These lights are 5 1/8" in diameter.
The 510 lights seem to be the ones most people here install. I know they're a little small for our openings, and most people mount them with the guards on to help locating them and filling out our openings. I don't mind this as I like the look of the guards and feel they will help center the lights in the openings as well as keep the hot glass from coming into contact with any part of the opening. These lights are 3 15/16" in diameter without the guards.
The 520 lights - I haven't seen very much info from people on here about these. I vaguely recall some people talking about mounting these, but can't remember what the outcome was. They're 6 1/4" in diameter, which pretty much tells me they're too large (as the 540's seem to be a little too large themselves).
I'm also looking at installing the driving lamp kit as opposed to the fog lamp kit.
What's the consensus about which to install??
Anyone have any input or suggestions that would be helpful??
What are your opinions??