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2012 sDrive20i (N20 engine) Power Tuning?
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02-12-2012, 07:07 PM
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Voytek
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Drives: 2012 BMW Z4 20i
Join Date: Jan 2012
Location: Belgium
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That is very interesting. Same turbo's?
So what makes all the difference? Turbo pressure is higher on the 28i but how? A blow-off valve that keeps a higher pressure before releasing? If so it would be fairly easy to get bhp improvements?
Appreciate
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