Originally Posted by p-torque.co.uk
We have tuned alot of the later naturally aspirated BMW's in order to cure flat spots and hesitation.
In order to 100% diagnose the cause though, I would like to load test your BMW on the dyno, (which is done as part of the mapping process anyway)
It's going back to BMW a week on Monday, so we'll see what they come up with.
If I'm not happy, I may become the forum 320i remap guinea pig....