Originally Posted by rollinstone157
The DEPO headlights definitely don't have the same dimensions as the OEM headlights--I wouldn't go off of these.
They are the same size as OEM. I just measured a set from an 07 e90 and the inside is 4.25" OD and the outside 4.625" OD. Close enoughto 4.5". Or 108mm and 117mm.