The Mini Maxx Street tuner is the next generation of diesel downloaders from H&S that combines high performance tuning with a complete set of digital gauges. With the flexibility of shift-on-the-fly tuning, plus the safety of automatic de-fueling, the Mini Maxx Street tuner has you covered.

*All Mini Maxx Street tuners comes pre-loaded with 4 power levels that can be changed at any time, on the fly. Whether you simply want some extra power to pass when towing, or want an all-out high performance tune, the Mini Maxx Street tuner has what you need!
Click a vehicle to learn more about vehicle specific features on the H&S website

2006-2007 5.9L Cummins
2007-2009 6.7L Cummins
2010-2012 6.7L Cummins

2003-2007 6.0L Powerstroke
2008-2010 6.4L Powerstroke
2011-2013 6.7L Powerstroke

2008-2010 6.6L Duramax LMM

2011-2013 6.6L Duramax LML/LGH


-  Reads/Clears Diagnostic Trouble Codes
-  Internet Update-able with included SD Memory Card
    & USB adapter
-  Custom Tunes are FREE to download
-  Mini Maxx can only be installed on one vehicle at a
-  Speed Limiter adjustments
-  Tire Size Calibration
-  Transmission Tuning
-  Available gauges to monitor:  Current Power Level,
    Transmission Gear Position, Torques Converter Status,
    Pyro 1, Pyro 2, Speed, Boost Pressure, engine RPM,
    Coolant Temperature, Throttle Percentage, Intake Air
    Temperature, Barometric Pressure, Battery Voltage,
    Fuel Rail Pressure (ICP), Transmission Temperature
    (Auto), Load Percentage, Mass Air Flow Sensor,
    Estimated Torque  

    Select a vehicle on the left to view vehicle specific
    horsepower gains