Ben, do you have any pics of yours or advice for doing them?
I tried taking some pictures with my blackberry but they came out horrible, it looks like the lights are awful in the pictures. Ill have to dig up my D70 and see if I can take some better pictures. With the bi-xenon projectors on high beam and my HIR high beams (HIR, not HID), the light amount is awesome.
It was a PITA to do. Mainly because I set the projects really deep into the housings. The reason I did this is because if you do it so the projector lens is right behind the front lens, and you look at the headlight from the side, you can see the back bowl of the projector assembly. I wanted the projector shroud thing to sit flush with the back of the stock reflector. This made the projector assembly stick out of the back of the headlight significantly. I had to cut my plastic headlight mount and cut a little notch in the aluminum core support behind the headlights. I also have to take the grille off now to get the headlights in/out..but whatever, that takes an extra 2 minutes, and its still 100x easier than changing headlights in a GMT-900.
I still have to seal up the back of the headlight housing (where the projector protrudes through the back). I was going to use RTV, but I heard thats not the right stuff to use...so I guess high temp silicone or something?
Im ALMOST considering going down to a 4300k bulb (5000k in there now). With the projector, 5000k looks bluer than 5000k in stock headlight housings. Bottom line, the headlights are awesome now. Incredible light output, the light is focused down the road (where its supposed to be, not just blasted out aimlessly), and Im not blinding people/drawing attention to myself.
BUT to be honest...to do the retrofit, its probably more work/effort than 95% of guys are going to want to do,
especially considering it takes 5 minutes to throw in a plug and play kit and get the impression
that the lights are "OMG AWESOME SUPER BRIGHT, DAMN EVERYONE ELSE ON THE ROAD IF I BLIND THEM!!!".
When in reality, YEAH a plug and play kit is bright, but they are fooling your eyes into thinking that you're seeing better!!!
You're overloading your near field vision with this blast of unfocused (compared to a true HID projector) light, which in turn hurts your distance vision.
Why do you think GM sets up the stock headlights to turn off the low beams when you go high beam? Because the engineers wanted to devise some grand scheme to piss you guys off?? NO!!! It was because with the physics of lighting and how your eyes see at night, when you overload your near field vision (ie, low beams), your distance vision suffers. When doing all the technical calculations and engineering, GM discovered that keeping the low beams on exceeded the max allowable nearfield illumination...so they decided to turn the low beams OFF when you go high beam. Thats why the fogs turn off too!!!!
Its just the way your eyes work, even if you THINK you're seeing better, technically, you're not.
THINK ABOUT IT. Doing the "all 4 on hi" mod doesnt make the high beams any brighter!!!!!
Your low beams are aimed down for near field vision, high beams are aimed up for distance vision. They dont really overlap...IE, the low beam light pattern/illuminated area doesnt really "intrude" to the area where the high beams are focused, depending on the headlight design.
When you are driving on a country road and want to see deer far ahead, how does keeping the low beams on help you see "further down the road". Its physically impossible. With bright ass HID's in the low beams and the all 4 on hi mod, your near field vision is being blasted with 2-dimensional light...regardless of what you are thinking, your eyes will always naturally focus on/be drawn to where the most light is.
So what this bright low beam/HID and all 4 on hi mod does is actually unconsciously make your eyes focus where the most light...right in front of you!!! NOT far down the road, where you SHOULD be looking (for deer and stuff, the area that your high beams are designed to light)!!!
Think about it. Your eyes can sometimes play funny tricks on you. I know its counter-intuitive, but Im not bullshitting you guys.