Hello All, Im new to the Duramax world, but i own a 2010 chevy LMM duramax and im doing the dpf egr delete 4 inch exhaust with EFI Live tuning. Im worried that as soon as i do it cops will look at my exhaust and Give me torubles for doing that and a big hefty fine! what area all your thoughts on this issue? I need the mileage and i want more performance in my truck!
thanks
thanks
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