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Old 08-12-2013, 01:22 PM   #3
RenegadeSS
 
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Drives: Camaro LLT
Join Date: May 2012
Location: Union City, NJ
Posts: 595
My buddy has a g8 and installed k&n intake magna-flow exhaust, kooks headers, ported throttle body. Very responsive set up, and he get around 25-26 mpg highway, and wound 19 city if he keeps off the throttle.
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