All I know is the hardest part was to align the projectors correctly (which I didn't do a very good job at for the driver side)... "Steady hands" with the dremel and try not to mess up your headlamps while cutting it away is the way to go. (but I did mess up..

)
Valeo's are small projectors, and I cut a HUGE hole.., So that means I had to fill it up with JB Weld somehow.. ohwell it worked out and no "condensation" yet.. I hope......... Now my next question is HID stop/tail and reverse lights?????..?

(I hope I'm just kidding)