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  1. Can some one help? COBB maps.. Downpipes.. CEL light?

    Technical Chat
    Hello, I am thinking of buying a Cobb accessport for my EU GTR 09. Was wondering if you could help with a couple of questions that weren't clear in the map notes them self.. Maybe some of you guys are running similar set ups. I will be running a Cobb big sf intake along with a full 3.5"...
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