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Old 07-08-2013, 05:59 PM   #5
mikeyg36


 
Drives: 2015 Z/28 #533
Join Date: Jul 2012
Location: NY
Posts: 6,731
So with all of this economy BS in the engine, all they could pull out of it is a 3 MPG increase? Not impressed. The rest of the stats are great though
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