I mentioned a few months ago that I was planning to put this kit on sale, but it is now officially off of the car. I've put almost 10k miles on the kit and it's been running great since day one. I'm selling because I'm not that happy with the kit at the track, but I love it on the street. With that said I should mention that I've been extremely impressed with how the kit handles heat at the track. My temps have always been normal even when driven at the track in 104 degree weather. I'll compare temps with the NA M3's and our temps have always been the same. It's pretty impressive (at least to me).
I'm selling this kit for $4900. You'll have to buy the software direct from ESS. I think this is a pretty good deal considering you are also getting the polished black manifold which is a $1000 upgrade when new. I've already placed an order for a brand new air filter so you'll be good there. I'm also ordering a new intake hose and supercharger oil so you'll have everything you need aside from the software.
Feel free to ask any questions about the kit here or via PM. Local buyers only because I don't want to deal with shipping and I prefer the buyer to inspect the kit before purchasing when spending this kind of cash.