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#help 2500hd allison allison 1000 bad injectors banks biodiesel brakes chevrolet silverado 2500 chevy cognito coolant coolant leak cp3 cp4 def deleted denali diesel diesel fuel dpf dpf delete drivetrain dtc error codes dually duramax duramax 2500hd duramax 6.6 ecm edge efi efi live egr egr delete electrical electrical problems engine engine smokes exhaust for sale fuel fuel additives discussion fuel filter fuel mileage fuel system problems gmc head gasket help injector injectors intake knock knocking l5p lb7 lbz leak leaking led pods lift limp mode lly lly duramax lly durmax lml lml duramax lmm lmm duramax no start noise oil oil pressure overheating p0087 p0700 powertrain ppe programmer reduced power rims smoke steering suspension tcm tires tow towing trans transfer case transmision transmission transmission problems tune tuner tuning turbo wheels white smoke will not start wiring
  1. Performance Upgrades
    I have a bone stock DEF equipped 2014 3500HD. it’s a CC/DRW 4x4. I want to delete the DEF system but I know the epa has tied everyone’s hands. Mainly looking for mpg. It has plenty power ( I know you can’t have too much) Should I just tune it and keep the DEF system intact? Looking for...
    def delete need mpg which tuner
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