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  1. #1 Re: p0420 
    smoke14
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    Default 04-18-2013
    Just do what Billboost said, hes always right. Or buy a quality Walker cat. High flow cats arnt worth it.
    "You know, all that really matters is that the people you love are happy and healthy, everything else is just sprinkles on the sunday."

    -Paul Walker
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  2. #2 Re: p0420 
    sirricealot
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    Default 04-19-2013
    Quote Originally Posted by smoke14 View Post
    Just do what Billboost said, hes always right. Or buy a quality Walker cat. High flow cats arnt worth it.
    Walker doesnt make one for the gxp yet according to the shop i go to. only one available is through GM
    2008 Grand Prix GXP 5.3L V8 (DRUNYON)
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