Bulbs and Ballasts
For bulbs and ballast I decided to go with a D2S system. It is important to make sure all of your HID components are compatible. There are several different systems out there. (If you buy a projecor that takes a D2S based bulb...buy a D2S bulb, and a ballast that will fit a D2S based bulb)
I chose the Phillips 85122+ bulb because the color(~4200K) and output(~3400 lumens). Plus these are the bulbs that are closest to the ones used in the stock TSX projector.
Phillips 85122+ bulbs- ($75 on eBay)
Denso ballasts from a Toyota
I picked these up on hidplanet as well for $150-
Wiring Harness
Finally, I would recommend making your own wiring harness. It's not that the stock wiring can't handle it, but if I ever sell the truck, trust me I am taking the lights with me. Therefore I do not want to ruin my stock wiring.
I bought a plug that fits the 9006 plug on the stock harness...
I used 2 relays...1 for the HID system, 1 for the 4-hi option (although I really doubt I will ever need the high beams).
Relay w/holder-
I used 16 gauge wire (anything below 14 gauge is overkill) and a 35 amp inline fuse holder. Lots of flex loom, solder, heatshrink tubing, and misc. connectors.
I used this wiring diagram found on the forums at hidplanet (minus the diode,plus the relay for the 4-hi)-
Here is the final product-
Installed below the driver side headlight
(BTW those are the stock headlights, I installed the harness so I could use the 4-hi until I got the retro done)-
Shrouds
Most HID equipped vehicles have a shroud or bezel that goes around the lens. This is purely cosmetic and has no effect on the output of light...most of them anyways. I decided to use a chrome 2" pipe flange that can be picked up at almost any local hardware store for a couple dollars (compared to $20+ for BMW,Audi,etc.). I have seen people use a variety of things for shrouds...be creative.
Pipe flange-
I decided to take off the raised sections with a dremel tool for a flusher mount-
Before-
After-
*Note: Do not attach the bezels to the projectors yet...the projectors need to be fitted into the housings first. I also had to trim them up a little to get them to fit.