MADS Smarty Junior Tuner - 6.7 Cummins ('07-'12)

Smarty makes the best tuners on the market for the 6.7 Cummins, hands down. The Smarty Jr is a handheld tuner that is just as powerful as the S-67 and Smarty Touch, just without the capabilities for custom tuning. If you are looking for a simple tuner for plug-and-play power gains and MPG improvements then this is going to be the best option on the market and is the best value for the price. If you don't need custom tuning capabilities then there is no need to spend the extra bucks on the S-67 or Smarty Touch.

The Smarty Jr comes pre-loaded with 3 base power levels: +40hp, +70hp, and +100hp. In addition to solid power gains you'll also pick up a few extra MPGs and notice tons of other benefits like faster turbo spool, quicker throttle response, and all around better performance and driveability.

This is our top recommendation for anyone looking for basic tuning capabilities on the 6.7 Cummins. You'll get all the benefits of tuning like power gains and increased MPGs at a great price. If you do think you might want custom tuning down the road then you can opt for the S-67 Tuner or the Smarty Touch - the S67 is going to be the budget friendly version of the Touch; they do the same thing you just don't get a fancy touch screen.

Smarty Jr Benefits:

• -Best bang-for-your-buck tuner for the 6.7 Cummins
• -3 preloaded tunes:
  • -+40hp
  • -+70hp
  • -+100hp
• -Customizable injection timing
• -DTC code reading
• -Adjustable tire heights and speedometer calibration
• -Easy installation, plug-and-play
• -2-5mpg fuel economy improvements