Hi, I have a 2008 BMW 325i with n53 engine however I have been a bit disappointed with the performance so was thinking of getting the stage 3 tuning package that takes it to the same power as 330i. Has anybody else had it done? It costs £1500, is it worth it? Finally, I live near Newcastle Upon Tyne, does anybody know of a good BMW tuning company up here? The only place I can find that supplies and fits the upgrade is M Style in London however I didn't really want to travel that far.