Bully Dog RV & Medium Duty ECM Tuner for 2008-2018 6.7L ISB & 2008-2016 8.3L ISC / 8.9L ISL Cummins

Part# 46511
$1,098.90 Now $999.00
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6 In Stock


Not Available to Ship to California



Product Description

The ECM Tuner for Cummins RV’s and medium duty applications from Bully Dog Big Rig empowers drivers of RV’s, tow trucks, tool trucks, and other medium duty applications to unleash the full potential of their rig. Based on the world-renowned Heavy Duty GT – a favorite among big rig drivers, the ECM tuner increases horsepower, torque, and fuel efficiency of medium duty applications. With advanced dyno-proven calibrations preloaded, the RV & Medium Duty ECM Tuner allows you to take your motorhome or truck to the next level.

Preloaded with 3 levels of emissions-tested, dyno-proven tune files to satisfy your unique demands. As your performance needs change, simply choose between loading Economy, Economy+Power, or Power tunes. The perfect combination of horsepower, torque, and efficiency right at your fingertips. Read and clear any DTC’s so there is never a question about an issue before heading to the shop. Increase and decrease the set limit of the vehicles cruise control. Save time and money when continually crossing the US-Canadian border to change the cruise control set limit.



Key Features

  • 3 Power Levels
  • Up To 20% Power Increase
  • Up To 12% Better Fuel Economy
  • Easy Install
  • Switches Easily Back to Stock
  • For Use On Vehicles With A 6 Pin Or 9 Pin Data Port
  • Note: Does Not Support Emissions Deletes






Bully Dog Big Rig’s ECM Tuner for Cummins RV’s & medium duty applications is streamlined to include 3 power levels, a speed limiter calibration feature and Diagnostic Trouble Code Reader. The beauty of the ECM Tuner is in its simplicity; you simply select the desired power level for the drive ahead, complete the install and store the tuner in your vehicle to enjoy the perks of Bully Dog tuning.



Fits The Following Cummins Engines In RV’s & Other Medium Duty Applications

  • 2008-2018 ISB 6.7L
  • 2008-2016 ISC 8.3L
  • 2008-2016 ISL 8.9L

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