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stage 3
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  1. General Nissan R35 GT-R Chat
    COBB support just sent me their OTS stage 3 tune. I have mods in place but the problem is this is for US spec - 91, 93 and e85 fuels only. I understand the US 93 octane equivalent in the EU is 98 (Ron) meaning if I used 98 or 100 octane that could work. Is anyone else using Cobb Stage 3, 93 oct...
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