You are correct, it was Tim's (Burninator) car. I may throw something together if I get the time which is the big deficit in my life currently.

The supercharger definitely makes a difference. I also have a completely stock E39 540i/6 with the 4.4 which is much quicker on tap but could never keep with the X from a dig (RWD vs AWD) or in a high speed run. I had been looking at the VF kit for my E39 prior to picking up this X5, now I think I'll just keep the 540 stock. I have other toys to play with anyway. I come from a turbo background and this is my first foray into belt driven boost so I'm still learning but if you have any questions feel free.