As it stands and unless the price takes a big increase I'm going to go the monroe / Eibach route, they are less than half the price of even the Sachs shock and gauging by the thread on bmw5, they perform fine.

I've been buying monroe shocks for years for VW's and I'm yet to have a failure, I didn't know they did a Tech II equivalent shock until Gar put me onto them.

@[ChrispyFish] I know the BC's would probably be better but I drove an E39 with JOMs and without exaggeration I can honestly say it was absolutely terrible.

I'm planning on tackling this within the next month or so, so I don't mind being the guinea pig. You're both welcome to take my car for a drive with them fitted.