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      08-30-2019, 03:28 PM   #27
Pray for Mojo
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Drives: 2014 M235i & 2018 X3 M40i
Join Date: Apr 2014
Location: Calgary

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The stock turbo is good for 18ish psi at sea level, which nets 14-16psi for us highlanders depending on air density that day. Some people will make claims about higher than 18, but it's pushed beyond its efficiency range and makes heat and no more power.
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