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      04-15-2013, 02:07 AM   #7
johanness
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Drives: 2008 Z4MC
Join Date: Aug 2010
Location: Seattle, Vancouver

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Quote:
Originally Posted by exdos
I honestly can't see how the OEM part is described as "restrictive" or how this part will make any significant performance gain. The air passing through this part has just passed through the most restrictive part in the air-intake system, namely, the MAF, and the internal area of the OEM part progressively increases the further away from the MAF as it joins the plenum.
Well it certainly won't net the same returns as the 370bhp from your custom intake alone... That's for sure
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