I installed my bulbs without dremeling or adjustments. I think it depends on how your headlights are adjusted from factory, some may need to make adjustments as others have experienced. I took the headlights out and the passenger side was a tighter fit but everything fit. I wish I thought to install the fogs while I had the headlight pulled. I'll end up installing them through the wheel wells once the weather warms up a bit. The stock bulbs look yellow compared to my LED drl's.
I still haven't had a single car flash me, these bulbs are awesome.
back country bumpy road lite up
I still haven't had a single car flash me, these bulbs are awesome.

back country bumpy road lite up