Thread: Why do people recommend map 1 over 2 on a JB4
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      01-18-2013, 09:00 PM   #5
Lifted07Duramax
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Quote:
Originally Posted by TigOn. View Post
run map5 for you. Autotune map to your mods, its not only for the people running e85.
Can you break down what map 1 vs 2 vs 5 is?
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