Thread: ADM BUILDS ZL1 417 CID STEALTH (1100HP build)
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Old 05-04-2013, 10:32 AM   #7
ayousef

 
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Drives: 2013 ZL1
Join Date: Oct 2012
Location: Dubai
Posts: 757
whats this exhaust thing that keeps the valves shut, do they stay shut the whole time, or is the mode selectable?
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1150bhp Whipple 4.0 Supercharged 427ci Camaro ZL1
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