I am currently shopping downpipes!!!! But before that...going to get a baseline dyno as well to show a before and after with tune and then with dps!Congrats on the X5M! I have one also with Dinan intake and Dinan exhaust but with BM3 tune.
Regarding the approx 700hp, I'm not sure about that as Dinan made the assumption that all these cars were understated from the factory and that the true crank hp was over 600hp which is why they market their tune and intake to provide ~700hp at the crank. Certainly would be nice if that was true. I need to get my car dynoed before and after my BM3 tune to see what the true numbers are.
Are you going to add downpipes?