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      06-27-2012, 08:58 AM   #6
1sikbmr
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Drives: E90 M3 6MT
Join Date: Mar 2010
Location: New York

iTrader: (14)

The factory air box on the M3 is probably the best design on the car. It has multiple points where cold air can get to the engine. Now the filter that they put is very restrictive so just a simple swap of the filter can gain some good numbers.
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E90 ///M3 6MT Atlantis Blue - Fox red #TEAMMODE
ESS VT1-550|Volk TE37|Recaro|STOPTECH|Ohlins R/T|Mode Carbon GT4 Lip|Umnitza V4 |Agency Power/Sosi/ACM Test Pipes|BMW PSW V1|