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Was curious about the mp-8 and if this a safe module to run with the dpf and egr still in tact. I'm just lookin for some mpg's and maybe a little more power. But dont want to plug up my great filter. I have had zero probs with this truck and dont want to start now. Thanks in advance guys and gals.

Brandon:beer
 

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If you are leaving the DPF in place, I wouldn't suggest the MP8, I still have mine in place and it does not help me towing and hurts me in the city. Just my experience. Maybe with the junk off it is a different story.
 

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I still have the DPF in place with an MP-8. Ive see 2mpg better on the highway with MP-8 set at 75% driving 67 mph. I have not noticed any noteable increase in the city yet, but I'm still expermenting with different settings.
 
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