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eat a fat pile of shit kb
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  1. EFI Live
    I am new to efi live and my 2004.5 lly goes good with Nick's tunes from duramaxtuner but on the 500rwhp tune it boost up to 38 and sometimes to 44 pounds of boost. This is a spike or peak boost if you read my sig I have every thing done I can trying to keep my stock turbo . Is this bad or...
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