I have been planning on getting the AFe stage 1 kit. It has a huge 4 1/2" filter with a tube that tappers down gradually. Comes with heat shield as well. Check out this link if your interested:
[url]http://store.bimmerperformancestore.com/BMW325iE36L6-2.5L92-95-M3E36L6-3.0L93-95.aspx[/url]
From the research I've done this is the one to get. I dk about the KNN one, but my friend's dad has the conforti intake in his M3 and its pretty nice too but this one you can find for a little cheaper if you look around, and its prolly a bit better in performance as well. I dk when I'll be able to afford it, but I will def post when I get it installed and let you guys know how it is. The article on that link is claiming 36hp/25ft-lb gains, but that seems a little exaggerated to me. It'd be nice to be wrong here tho.
On the ASC; I have '93 and she didn't even come with it, just the limited slip in the rear. And I definitely prefer it this way, although it has almost gotten me into trouble a few times... I like going sideways a little too much
