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Old 08-07-2013, 06:36 PM   #49
Bigtime53


 
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Drives: 2013 ZL1
Join Date: Mar 2013
Location: Oklahoma
Posts: 2,298
Ok I have read all the post on this[I think] and no one has asked or answered but does this give you a performance gain or does it just sound better? I believe the flaps open when you are at wot,correct?
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