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Chevrolet multi-mode exhaust
Chevrolet entered the world of active exhaust systems with it's C6 Corvette.
The 2013 C7 Corvette Sting ray has standard 'DUAL MODE' exhaust.
The 2014 Camaro SS offered DUAL MODE exhaust as an $895 option.
Butterfly valves in two of the exhaust tips are open or closed depending on.........................
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Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
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