Thread: 2013 gt500 650hp running 15psi???
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Old 01-17-2012, 03:56 PM   #5
casper sc/1ss/rs
 
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Drives: 2011 camaro ss vortech supercharged
Join Date: Aug 2011
Location: marion VA.
Posts: 524
dang thats a lot of boost for a showroom car

so what is the zl1 running?
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