Hi Graeme
I will put that date in my diary and I will try and get.
I have posted some photo,s of the turbo it does,nt seem like an easy
job,the air filter has to be moved,a new exhaust manafold fitted and
there is lots of plumbing and tubes all over the place plus there is
not a lot of room.
Im not sure what difference the turbo makes because I have never
driven a standard 635 but it does go very well especially mid range
when the turbo kicks in.If we meet up in september you can have a
spin then you can tell me.

Cheers for now

Dave