if you've got an e6 engine ...then am assuming that it's also got the corresponding turbo ?
if so it's perfectly adequate as you can run 1.5/1.6 bar max
if not, get an e6 RS turbo
perhaps you could investigate alternative big-power non-oem units, if you're looking at upgrading other components as well such as ecu, cams, injectors etc....
otherwise just slapping on a bigger turbo than standard may not give you the significant performance increase you're expecting
Everything under the bonnet was from the e6 apart from the manifold and turbo which was from the e4.didnt buy the turbo at the time as I wasnt sure what the difference would be and there was nothing wrong with the turbo I originally had.
Just checking to see if this turbo would we a worthy addition.