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Old 11-05-2012, 04:48 AM   #143 (permalink)
ChazInMT
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Join Date: Jan 2010
Location: Vero Beach, FL
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MagMetalCivic - '04 Honda Civic Sedan EX
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I can think of 3 reasons to leave it on. First to protect the bottom of back of the cap. Second in a rear end collision it adds some protection. Third it keeps that back angle on bottom to less than 10 degrees which is optimum for a rear diffuser area.
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