as far as I know there is no break in but I may b wrong . my 2018 is tuned at a little over 2000 miles I am getting 31 mpg on the road and 24 around town running gde off road tune
itook every thing off at under 2000 miles runs great if it ends most problems what do u need warranty for deleted my 2011 Cummins at 200 miles has not been to the dealer ever every other one I know was back every other week for bad sensors and wiring harneses