I just replaced my stock low beam and fog bulbs with PIAA Superwhites and am now wondering if I need to adjust the height and/or direction of the lights.

Face your car at a garage from 10-20 feet away at night. You should feel comfortable with the beam pattern of the low and high beams (after tweaking my lights, my high beams were crossing and my foglights were aimed directly at the ground). The adjustment is in the manual under "Headlight Adjustment" (the inner adjusters are for height; the outer are for horizontal).<p>-josh

The best way to have you lights adjusted is to have the dealership do it for you when you take it in for service. I have the superwhites for the fog lamps but the stock light bulbs for the low beams. I'm waiting for the PIAA Superwhite H7's from a friend overseas.