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      01-25-2014, 12:00 PM   #16
mx5er
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Drives: 2014 320i Jet Black
Join Date: Aug 2013
Location: East BAY, California

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Quote:
Originally Posted by synclastica_86 View Post
Please correct my ignorance, but I think my physics background is kicking in again.

Why would people use both a roof and a trunk lid spoiler together? Once the air passes over the roof spoiler, the air flow below it becomes turbulent. Wouldn't this render the trunk lid spoiler useless?
You are correct. I was just questioning this and I don't understand the point of having both. It should be one or the other.
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