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  1. COBB Access Port

    General Nissan R35 GT-R Chat
    I'm about to install y-pipe, downpipes and new injectors after which I plan to upload the Stage 2 from my COBB AP. I have the following q's: 1. Will this be a reliable tune or will I need to have a custom tune made? 2. On a stage 2 set up will I be required to upgrade the air intake? I'd rather...
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