Just wondering what possible ways of FI people have done to 540i's? There seems to be nothing short of a $6,500 supercharger. Anyone ever seen a turbo one or have any experience with a supercharger on the M60? I might have a little summer project:) Any information would be nice.

The only kit is from ESS tuning which is the supercharger you are talking about. I havn't been able to find anyone who has actually been able to fab up their own turbo yet but I'm sure there is somebody who has made a custom SC.

I'd love to see a 540i with a homemadeturbo.com turbo setup on it. I could get another car for the price they want for the SC.