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      12-16-2013, 10:09 PM   #140
JoeFromPA
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Drives: '15 AW M3 6MT Stripper
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Quote:
Originally Posted by Boss330 View Post
Not sure

They do it on the F10 M5 as well, but have no idea on other models...
With electronic boost control, yes it's common. Otherwise you get undesirable boost spikes.

Remember this is one of the reasons turbos are well loved in the mountains compared to NA
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