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      01-20-2016, 11:37 PM   #9
FSociety
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Drives: G80 M3, X4M, G07 X7m50
Join Date: Apr 2012
Location: NYC to NJ to Orlando FL

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2023 BMW G80 M3  [0.00]
2020 BMW X4MC  [0.00]
16' BMW X4 M40i  [10.00]
06 Cadillac STS  [0.00]
Quote:
Originally Posted by 42pilot View Post
Yes, it's worth it for simple improvement in drivability - throttle response and torque improvement to 3500 rpm. If you plan to keep the car for a couple years, don't go above the stock (or shipped) values. Each click is only 1 1/2% improvement but there are diminishing returns. Even though the US motor is detuned because of emissions, the detuning is not just lower fuel and fuel timing. It's other things like boost, when boost is applied (VGT), when fuel is applied in conjunction with boost, and so on.

Anyway, mine is dialed back from OEM (since I bought the car, not leased) and it works well.
Lower than OEM setting too ?
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60-130 6.5s X4M
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60-130 4.82s | 9.4@148mph 1/4 Hybrids

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