Any of you guys going from cats to these art pipes, how much louder are they?
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2007 350Z HR :: 3.7 Final Drive : Injen Long-Tube Intakes : TurboXS Cat-Back : Eibach Sportline : Enkei RPF1 18x9.5/10.5 +15
Last edited by aadosx; 05-19-2011 at 09:19 AM.
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