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  1. How to make 6.4 smoke more with black maxx?

    General 6.4L Discussion
    I got a 08 with a black maxx tuner and DPF delete. I just got this truck a while ago and still trying to figure out how the tuner works which came with the truck. Before you guys go off and say "smoking is stupid and bad and just raw fuel being wasted" I just would like to have this for a day...
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