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      08-10-2018, 12:30 PM   #3
VailM3
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Drives: 2011 Z4 35is
Join Date: Jan 2013
Location: Geneva Switzerland

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you can run stage 1+ on a stock 35iS and then the gains are noticeable. As mentioned above overboots is always on. Put on a golf t-mod and turn on burble for sport mode only and you are all set.

By far and away best bang for your buck for exhaust and power gains on a 35iS.
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