EDIT: I've added a guide on how to install the AD Engineering Single Turbo Kit in the document section: https://bmw.spoolstreet.com/documents/ad-engineering-single-turbo-install-diy.29/ So I received my AD-E Single Turbo kit in the mail today from @AD-ENG and everything seems to be in order. I went with the 6266 Gen2 which should be arriving in a separate box. Speaking of box: It came packaged up nicely with lots of packing. Everything was double wrapped and taped and wound up as you'd expect. The delivery people have not been kind to many of my deliveries lately. This box had a small dent in the corner but from what I can tell that has had zero impact on the parts inside: That is a lot of packing! I'm electing to have a 3.5" downpipe made to eliminate the single->dual->single->dual transitions. And of course the centerpiece: Currently the goal is to do this myself. I've got lots of things going on and I'm also moving at the end of the month on top of the holidays and my conventions so we'll see if I can make time.