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tuning and emissions
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  1. Aftermarket Mods.
    I have a 2016 GMC duramax. I have 65,000 miles on it and it is bone stock. I would like to do some mods...EGR delete, DEF delete and tune. My question is regarding emissions testing. I currently reside in an area where there is no emission testing but am considering moving where there will be...
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