I have a set, along with the clear corners. They are a lot brighter than the NA ones. The fog lights are much better as well.
When I got them, they came with wiring instructions. I dont' actually know about the vac adjust. I didnt' know that existed. The one intersteg thing about them is that they have a blue tinge when viewed during the day from the front. I put the protectors on them as I drive on a lot of gravel.

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All it takes for evil to prevail is for good men to stand by and do nothing.

Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor

'95 S320 LWB
'87 300SDL
'04 E500 wagon 4matic