Thread: Tuning the F8x
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      07-23-2014, 03:15 PM   #19
AWTT335i
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Drives: E90 M3
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I'm sure the S55 engine has plenty of overhead, but the S55 turbos appear to be close to maxed out, if you are talking power up top. There is much more power to be had in the midrange, as BMS's dyno shows, but up top they are struggling to pickup a lot of power.
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