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Old 05-04-2013, 11:01 AM   #8
ADM PERFORMANCE

 
Drives: 2013 ZL1 #138
Join Date: Oct 2008
Location: DfW - Texas
Posts: 3,773
Quote:
Originally Posted by ayousef View Post
whats this exhaust thing that keeps the valves shut, do they stay shut the whole time, or is the mode selectable?
This car is either open or closed
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