Your Cart

Cummins Class 8 Heavy Duty Bully Dog ECM Tuner

Bully Dog's ECM Tuner for Cummins®, 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: 46511


Write a review

Please login or register to review
Tags: Bully , Dog , Cummins , ECM , Tuner , heavy , duty , 46511
Cookie Notice
Our website uses cookies to enhance your shopping experience. Continued use of our website gives us your consent for the use of cookies during your visit. Please view our privacy policy to see how these cookies are used.