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      12-22-2017, 04:40 PM   #15
Evil///M
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Drives: R8 V10+ | Colorado Z71
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Quote:
Originally Posted by MHD Tuning View Post
That will come end of January for M2.


Not the dealer. But any tune (flash or piggyback) can be seen if BMW (munich) really digs.


In stock form, the M2 targets less rail pressure above 5400 rpm than the 320hp N55s. It also runs a richer AFR. So the M calibration also had to make up with the weak HPFP. It's definitely the limiting factor for 2+, as the car is boost happy. We have to strike a good balance between AFR - rail pressure - boost (remember the jb4 will only affect boost so it has less wiggle room).
So, for anything more... port injection??