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      10-28-2012, 02:25 PM   #1
LarThaL
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Drives: 2011 M3
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Max possible NA power gain staying legal?

As the title says....what is the maximum possible NA power gain while staying emissions legal? Dinan Stroker doesn't count.
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2014 Audi S6 * 2015 Audi S3 * 2015 Porsche Cayman GTS
Former 2011 BMW M3 owner