Smarty JR J-06 Programmer


Fits Cummins '03-07

Guaranteed Fitment

Free Overnight Shipping

Warning: This part is intended for use on racing vehicles that are used exclusively for competition in closed-course racing events.

Smarty Jr J-06 is a tuner designed for allowing complete customization of your critical vehicle parameters. It forges a delicate balance between reliable power delivery and safety of the engine/transmission combined with good fuel mileage. Smarty has and will continue to be a trusted name in Duramax tuning.

  • Highly optimized CaTCHER software supporting over 15 billion possible tuning customizations
  • Three different performance levels: 40|70|100 hp
  • Organically and reliably works with your OEM hardware
  • No traces left in the ECU
  • Built-in USB for simple updates over the Internet
  • Reads Diagnostic Trouble Codes in plain and simple text
  • Three times faster download speed than the nearest competition
  • Simple plug and play installation: No tools required
  • Lowest exhaust gas temperature in the industry
  • Enhanced adjustability and potential for even greater mileage gains by using PoD Software
  • Ability to adjust timing and torque management to suit your needs

Power Gains

Dodge / Cummins: Up to 100 HP

Software 1: 40 Horsepower increase
Software 2: 70 Horsepower increase
Software 3: 100 Horsepower increase

Vehicle Fitment

Dodge / Cummins: 2003 - 2007

Top Features

Just Performance. Not Heat.

Even when used at the highest horsepower level, typical exhaust gas temperatures are on average 200°F cooler than with stock software. That is true optimization.

Unleashes Power Without Voiding Your Warranty

No matter what the competition claims, Smarty tuners are the first and only of their kind that do not erase any of the stored data or leave traces of existence in the Engine Control Module.

Convenient and Lighting-Fast Updates

Smarty Jr J-06 is loaded with its homebred bootloader to allow convenient and faster flashing up to three times faster than Star-Scan diagnostic tool or any other competitor. Pulling fuses after an interruption during updates are things of the past. Just turn the key OFF and ON and Smarty does everything else on its own.

CaTCHER software

One of the best in the industry, CaTCHER brings the power right off of idle so that you can experience the power increase throughout the entire RPM range.

What's in the Box

  • Smarty Jr J-06
  • OBD-II cable
  • Instruction manual
  • 1 sticker

Customer Reviews

Based on 3 reviews
Dwayne Beaty

Smarty JR J-06 Programmer

Tyler Marshall

The smarty j06 does everything I hoped it would and even more! Easily the best investment I’ve made towards my truck so far, could not be any happier and would definitely recommend to anyone with a dodge wanting to get the most out of their truck.

Paul Anderson
Perfect mid-range gains without stress

Just bought a Smarty Jr and have been running mid-range settings, levels 1-2. Pretty decent HP gains, added torque, and fuel economy too. From what I could research this won’t give me any long term issues running the truck like this. Only mods on my 2007 5.9L is an upgraded air intake and 5” exhaust, stock trans and clutch.