Is re-aiming of headlights required after lowering? I know most people don't do it but it seems that it would make sense, lower car would cause the beam to be lower. Any inputs?

 

It makes sense to re-aim the beam a bit upward cause you don't want the beam to be under the vehicle that's in front of you...
Do you really wanna see the dirtiness under the car in front of you!

 

Well... depends what dirty car is in front.

 

If your ride was level before the drop and still level after the drop, you should be okay.

If your ride is higher in the back than the front, or vice versa, your ride is not going to be level and therefore it will affect the angle at which the headlights are pointed. At that point you will need to re-aim your headlights to compensate.

I threw my coilovers in and the rear was riding a little high causing the headlights to point a little low. But instead of aiming my headlights, i just lowered the rear to level it out with the front. now my lights are pointed perfectly with the cutoff landing approximately at the top of most car bumpers.