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Detroit/Mercedes Class 8 Heavy Duty Bully Dog ECM Tuner

Bully Dog's ECM Tuner for Detroit and Mercedes, is a response to fleet owners looking to tune and go. This heavy-duty tuner is streamlined to include 3 power levels, a speed limiter calibration feature and DTC Trouble Code Reader. The beauty of the ECM Tuner is in its simplicity; customers simply select the desired power level for the drive ahead, complete the install and store the tuner in their vehicle to enjoy the perks of Bully Dog tuning.

* Not legal for sale or use on pollution controlled vehicles based and registered in California.


  • 15-18% Power Increase
  • 6-12% Fuel Mileage Increase
  • Speed Limiter Adjustments
  • Diagnostic Reader

Bully Dog part number: 46531



2007-2016 DD13 12.8L

2007-2016 DD15 14.8L

2007-2016 DD16 15.6L

1999-2007 Series 60 14.0L 



2007-2010 MBE 4000 12.8L

2007-2010 MBE 900 7.3L 

Not available for sale in the state of California Not available for sale in the state of California. Click here to read Emissions Notice.


Lame California Prop 65 Notice
Tags: Bully , Dog , Detroit , Mercedes , ECM , Tuner , heavy , duty , 46531