Fits
Year
Make
Model
Engine
2014-2018
Dodge 
Ram 1500 
3.0L EcoDiesel 
2014-2017
Jeep
Grand Cherokee 
3.0L EcoDiesel
  
The Derringer Tuner is dyno calibrated to use multiple data inputs such as throttle position, rpm, vehicle speed, AFR, Knock, and coolant temperature, just like your engine's ECU. Its microprocessor-based electronics are able to actively and safely optimize calibrations in real time. All you have to do is plug it into your OBII and enjoy the six power levels! 
 
Super Gauge vs Data Monster: Super Gauge is your average Derringer Tuner, the main benefit of going with the Data Monster (Part Number: 66794) is getting the Data Logging feature. The Super Gauge is the best option for 90% of users.
 
Part Number: 66xxx