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2012 ZL1 Exhaust on a 2011 1SS
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07-07-2016, 04:14 PM
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thegreatwhite
Drives: 2014 SS
Join Date: Aug 2014
Location: Norcal
Posts: 315
the stock ZL1 pipes an cats should be legal. if it were my car i would find out which high-flow cats were CA legal cause a boosted car can have big power benefits to no or high flow cats. i think solo and or JBA make CA legal high flow cats
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