[QUOTE="Champ"] Heh. I was just making exactly the same sort of noises looking at this: [URL]http://www.mybluefin.co.uk/curves/330i.pdf[/URL][/QUOTE] I can *kinda* believe it on a turbo engine. Almost, but not quite. On a normally aspirated engine that seems a little too good to be true. Which leads me to suspect £445 worth of Snake Oil