different transmission. the 6mt clutch is beefier so you and a tune with no problems. The dct no and the 1m has no overboost function either as it only comes in 6mt. The extra boost is 20 to 25 ft lb torque for the 6mt. One way to find out for sure also is to read the manual and look for instruction on how to activate the overboost function for 6mt. Another way to tell also is to look for the checkered flag on the dash.
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Originally Posted by PKizzle
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.
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