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      09-29-2008, 02:55 PM   #46
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Drives: E90 335i
Join Date: Aug 2008
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Quote:
Originally Posted by sflgator View Post
Technically, you don't have to install the heat shield (the dual cone air filters do not sit on the heat shield and are not stabilized by it), but why wouldn't you?
Maybe better airflow, since the AFE intakes dont sit down in the engine bay and sit up above the engine that they would receive cooler air than lets say the BMS ones and get the better air flow without the heat shield........