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      01-01-2013, 07:01 PM   #3
JNoSol
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Drives: 750 MSPORT & E90M3
Join Date: Feb 2012
Location: Kansas City

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Most BMWs have nice cold ram-air box, K&N drop in should do the trick. Sometimes open intake design just suck up hot air, making the mod counter-productive.

I had dual Pop Charger Intakes when I had my Z, it didn't make any more power on the dyno with the hood closed + hot engine compared to the stock box. It just sounds good. Most people dyno their new intake upgrade with the hood open.
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