I cant keep my mouth shut on the 20-23 mpg.
... yall need to figure it with a calculator and dont believe your ecm..... I have a good friend that owns a shop that specializes in the late model cummins trucks and he has done a ton of the deletes and they get around 17-18... I am not saying you are stretching the truth just maybe misinformed by your ecm
anyone that needs it done at a good cost look up east fork performance in Evergreen Tx. or pm me for his number. The trucks do perform way better with the delete for sure and pick up a few MPG to boot.
