I need new headlight housings for my 2000 s4. I found a pair of a4 housing that are in great condition and are dirt cheap. What I was wondering was will they be a direct swap onto my car or will i have to modify them.
Thanks for the help!

 

Depends on if both cars are HiD or not. I have aftermarket black housing headlights in my car now. Had to swap out the innards and do some work to make the corner lights fit.

If they are both HiD or vice versa then you should be fine.