Quote:
Originally Posted by pruettfan
I can say from my experience after the service I felt a pretty big increase in torque and can now hear turbo sounds that I didn't before. After service I drove the first 50 miles the same as I had during the break-in process. I suspect that what they turn on is the additional torque function and perhaps offer up more boost. All I know for sure is the service took over an hour from the time the tech got it because they had to reprogram the car and when I got it back it had more power than before. I had a baseline to work from also because I spent 2 days driving it a M School so I have driven several M2's.
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They don't do anything other than change the fluids for the M2. If they reprogrammed your car most likely all of the "learned" fuel trim and timing advance parameters were reset. That's the "extra" power you are feeling while the car re-learns. These cars constantly adjust based on driving style and environmental factors (temp) but always start with a default.