The H&S Performance Mini Maxx is our most popular tuner. One part number fits the following vehicles:
Dodge Ram Cummins Diesel 6.7 2007-2012
Ford SuperDuty Powerstroke Diesel 6.4 / 6.7 2008-2015
Chevy / GMC Duramax Diesel LMM / LML 2007-2014
Fuel Mileage Gains
Depending on how restricted your catalytic converter and diesel particulate filter are; fuel mileage can vary. We typically see trucks that are equipped with a DPF getting 13-14mpg or less. With the Mini Maxx, total mileage is approx 18-19mpg or better. Larger tires and driving habits can effect these numbers.