I love my TRS quickretro kit. I didn't wire up the bi-xenon, although the projectors are setup for it if I ever want them. The TRS retrofit kit was the most I've ever spent on HIDs, but they came with the ballast that mount to the bottom of the stock headlight and put much more useable light on the road where it is needed and comes with a razor sharp cutoff pattern. Also, when you see my car head on at night, it is just two blue/white circles, no glare. I highly recommend theretrofitsource.com's kits. The adjustment is made just like the stock halogen lights. You have to pop the hood and level them that way. I don't know of any way to add auto leveling, or the motors like the STis have.