Does anyone have an HPF turbo kit on their M3?

I'm kind of in the market for a 550i, I already have a 5 series though. Wife wants to keep the current car for herself and to get a truck or a jeep. That kind of leaves me in a situation where I can get any car I want since she got what she wanted.

Does anyone have any experience with the HPF stage 3 kit? I live in a smaller town, more rural population and its the south. European cars aren't very popular here. I haven't found anyone who has added this to their car in my area or any HPF turbo kit. Such as reliability and driveabilty. I've seen the videos and reviews and they claim to make 800hp daily drivers. I've driven 800hp-1000hp cars and trucks, they aren't very streetable, granted they've had some monster stalls on them. Any feedback would be greatly appreciated.