the one in the middle moves them up and down. I think turning them clockwise turns them down. Had to adjust mine a couple of weeks ago, had too many flashes..
The list starts here: Depo headlights w 8000k hid's,/CCFL's
, smoked tails, corners and BBS RC041's/042's, Vogtland junior cup kit.
Lightweight flywheel ,clutch and SSK are in.....