Ok so I'm using the same turbo I did on my 20 td06h-20g 8cm it's now going onto a sr so very little difference only diff being I'll be using a 3 bolt flange for the rear housing to see how well it flows changes spool time ect. I'm considering buying a blue lable td05-18g 8cm so that would bolt straight onto the mani I'm making for the sr. This way I can test the differences between the turbos I'm sure jez won't mind haha or boydy. Now I just need to get the BMW going haha