2012 sDrive20i (N20 engine) Power Tuning?
I have a question that seems to be pretty hard to be answered.
I ordered my sDrive20i Z4 last week and it is being delivered at the end of march. However I only have the 184 bhp 20i version instead of the 28i with 250 bhp.
Since it is the same engine I was wondering what possibilities I have to get the power up to around 250 bhp?
Is the 28i just fitted with another mapping and more turbo pressure?
Would be nice to get some tips. A chiptune is only getting me around 220 bhp from what I've read online?
Last edited by Voytek; 01-30-2012 at 12:01 PM..
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