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Old 05-15-2010, 09:17 AM   #2
Bear2SS
 
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Drives: Soon to be 2013 ZL1
Join Date: Sep 2009
Location: Charlotte, NC
Posts: 149
Check to see if it's unmarried. You need to hook it up to the car and download the stock tune to the tuner first. Then select the pre-programmed tune which is the maggie tune. Hope this helps.
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