Figured I'd post in the local forums as well. Located in Philly.
Looking to sell my Dinantronics Elite kit. Came off of my 2017 M240i xdrive, no issues with it at all. I needed something more customizable for my application.
The car feels much quicker with this and has Dinan's warranty to back it up but I believe you would have to have Dinan/BMW install it. I would also double check if this is still the case with getting this second hand.
If you don't care for that, this is super simple to install and I can walk you through it or just do it for you if you are local, should be about half an hour with a beer.
Advertised gains (found on FRSport):
Max HP Gain:47 @ 4500 RPM
Max Torque Gain:60 @ 4000 RPM
Peak Torque:438 @ 4250 RPM
For more info:
https://frsport.com/stage-1-dinantro...-f22-f23-m240i
(Dinan website does not have the link available for the original version, at least not that I saw)
Price is OBO, feel free to ask any questions.