Reaction26

Do I need to buy a xenon kit for the 1-piece xenon projectors? Or can I use my stock bulbs? H7 white

Andy_FL

I ran H7s in the S4 xenon housings for a while without any problems. In order to get the bulb to seat right, you'll probably need to trim the collar like this:

<img src="http://pictureposter.audiworld.com/12690/trimbulb.jpg">

Good luck

Andy

Reaction26

How hard is it to do? Are there any instructions for installing them.

Andy_FL

The bulbs? The housings? There's an article in the tech section I believe that tells you how to put 1-piece lights in place of 2-piece, if not there's tons of info in the archives. It's not hard. Good luck

Andy

Reaction26

DO you have the instructions for the installation process, on how to do it?

achvall

I am using H7 bulbs in a one piece xenon housing now and I have horrible lighting from the porjector. So bad that I needed to angle down the highbeams to see until I find a fix or upgrade.

Andy_FL

...the one piece lights were MUCH improved over the two piece.

Andy

Andy_FL

I sure don't.....best I can tell you is try a search.