https://www.youtube.com/watch?v=w6avaItD9bg been done
https://www.youtube.com/watch?v=-n2Rc-J-BNg
i wanted to do this but finding a m50 locally is hard plus the 6 spd trans ecu and harness are hard to find unless you buy a bmw and remove it but that just be stupid unless it was totaled. my cuz had a 01 325i and that thing can pull and it smooth