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      06-13-2013, 09:16 AM   #7944
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Originally Posted by OMRITIME View Post
I have the jb4 g4 and I need to upgrade it to g5 because I'm getting the rb turbos
I understand i need the Cobb ap for the best tuning, so I need uninstall the jb?
I don't understand what is the difference between them?!
COBB is a flash tune through you OBDII. You can run both but need the proper tuning. There a threads out there that cover this.

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