Originally Posted by tres
no the 6mt does not have the overboost function
That's just plain incorrect. No change in engine specs between the two. In fact I recall an interview with a BMW M head who mentioned that the 335is 6mt has a beefier clutch and lighter flywheel to handle the extra torque from overboost. He said this hardware was shared with the 1M.
All that aside I have a 6MT 335is and the over boost is pretty obvious when you floor the car.