48 reviews

2013.5-2018 Cummins 6.7L PRO DIESEL Performance Module w/DEF

Diesel Pro Modules

  • NOTE: The de-rated Ram Cummins 6.7L Cab & Chassis has its own specific Module. This Module does not work on the de-rated Cummins motor.

Fits Ram Cummins (2011-2018)
  • 2500 and 3500
  • Manual and Automatic Transmissions

Horsepower Select Knob:

*30 HP - Heavy Tow
*60 HP - Best Mileage and Tow
*90 HP - Mileage and Light Tow


  • Simple Install: EZ Plug-n-Play technology that you can install "in minutes" by simply connecting to your engine's wire-harness with factory style connectors.
  • Fuel Mileage: 10-20% improvement (get up to 100 more miles per tank of fuel)
  • Power Increase: Safe/Smooth low to medium range power for daily driving and pulling loads (Max 100 ft/lbs Torque)
  • Throttle Response: No more turbo lag... quicker Get Up & Go
  • Engine Safe: Performance gains stay within Stock parameters
  • Transmission Safe: Engineered for working-class daily drivers
  • Proven: Installed in tens of thousands of diesels since 2003
  • No Additional Mods: No need to delete emissions or add additional mods
  • Warranty Friendly: Leaves no "fingerprint" in the factory computer

Don't be frustrated with your mileage... improve it!

Since 2003 we here at Diesel Domination Inc have focused solely on upgrading "Working-Class Daily Drivers". We truly believe the "original" Dr. Performance Pro Diesel Modules are the Safest, most Warranty Friendly diesel performance products on the market.

The Pro Performance Module is the proven SAFE and WARRANTY FRIENDLY way to increase your dieselu2019s fuel economy and towing ability without the hype, hazards, and hidden costs associated with most diesel chips and delete kits.

Tenu2019s of thousands of hard-working diesel truck owners just like you are now experiencing incredible money saving fuel mileage gains and more towing power because they upgraded their trucks with the easy to install Pro Performance Module.

So effective is the Pro Performance Module at giving you both optimal fuel mileage and power gains, that it makes other diesel performance products nearly obsolete.

The price is affordable for most any budget and easy enough for anyone to install. If you are frustrated with less than optimal fuel mileageu2026 you now have a solution!

If you are daily driving or going cross country, 100 EXTRA miles per tank of fuel adds up fast when it comes to money in your wallet. Stopping less to fuel up makes traveling more enjoyable and more affordable when you are saving $20 for every $100 in fuel. (up to 20% MPG increase)


You feel like your truck has plenty of power but the fact is Emission Standards have forced manufacturers to de-tune your truck below 2000 RPM. This de-tuning has caused diesels to lose mileage over the years.

To restore your truck's fuel mileage, you must change the "peak efficiency" of the motor to match your driving/towing RPM speed. Increase the low-end torque rise of your motor significantly improves fuel economy because the engine now does more work with less effort.

After increasing low-end torque many of our diesel customers tell us their trucks that were once getting 13-16 MPG and are now seeing up to 18-23 MPG.


The main difference between the Pro Performance Module and most electronic diesel performance products is the manipulation of fuel pressure vs fuel volume. Most chips/programmers change injector pulse width which adds for fuel to the engine... the Module changes fuel pressure which enhances the injector plume and increases the fuel atomization.

Excessive injector pulse width modification adds too much fuel volume and can cause the engine to run rich (smoke/heat)... whereas pressure/plume modification causes the engine to run more efficient due to improved fuel atomization. Pressure modification does add slightly more fuel under throttle but the additional combustion performance offsets any negatives.

The Number One reason customers install the Performance Module is for fuel savings but having up to an additional 90 horsepower (140 ft/lbs torque) makes for a more responsive truck when towing heavy loads. You can now get heavy loads moving faster and keep them moving faster on steep grades with less downshifting. (faster turbo spool gets you through intersections quicker)

The Pro Performance Module is an easy to install u201cplug and playu201d diesel performance product suitable for todayu2019s hi-tech diesel engines. Engineered with advanced digital-microprocessor technology, the Module simply plugs into your factory wire-harness with OEM style plugs and helps manages your engineu2019s fuel delivery with precise electronic control of injection pressure.

Pro Performance Module gives you proven results with the u201cbest of both worldsu201d. You get incredible money-saving benefits of better fuel economy and an amazing engine performance increase and at the same time! Instead of being frustrated with your diesel, simply upgrade it with a Pro Performance Module and get the fuel mileage increase and first-class towing power gains you deserve.


You can't just wish for better mileage and do nothing... You must change your diesel's "peak efficiency" to increase your fuel mileage.

Add the Pro Performance Module to your Cart "RIGHT NOW" and start experiencing for yourself what thousands of hard-working Powerstroke, Cummins, and Duramax diesel owners are already enjoying.


Customer Reviews
4.2 Based on 48 Reviews
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Filter Reviews:
Randy S.
United States United States
I recommend this product
something that works.

the pictures in the install guide were unusably poor but once you got past that the installation takes about 10 min.. the product performs as advertised, giving better power in the critical 15-2100 rpm range where i actually drive. i don't know how, but the transmission also does less "hunting" while pulling on low to medium grades. this goes in my (short) list of **** that actually works.

John W.
United States United States
I recommend this product
Good, but not what I was after

While my overall experience with the module is positive it’s not really what I was hoping for. It does definitely give a boost to performance that really kicks in around 1500 rpms and above 2000 you really notice a pick up, it’s the hole shot I was looking for improvement on and yes there is a change it’s not very much from a dead stop. There is also an increase in mpg of at least 10% maybe 15% which is nice. But I’d have to say from a stop start there still is a little pedal lag.

Leland S.
United States United States
I recommend this product
Pro module

No more turbo lag, more bottom end power and I'm getting 2 mpg better when towing and around 4 empty. I am so very happy with this product I Highly recommend it. Thank you

Austin D.
United States United States

Easy to install and works great. Have saved on fuel for long hauls. The original package was stolen from our mailbox along with several other folks’ mail and items. I called and asked if they had a process to file a claim and they sent another one out by alternate delivery to ensure I received it!! Absolutely the best customer experience ever!!

brody l.
United States United States
I recommend this product
no increase mpg but got power added.

with no load the truck gained about 1-3 mpg. i was not impressed at all but noticed there was no throttle slack. the truck was way more powerful and more responsive. hawled a fifth wheel 45 ft camper last weekend for 16 hr round trip. and same thing 1 mpg better, but had more power and no throttle lag like before. next trip ill try it in low mode to see what is acts like. this was all in high.

robert k.
United States United States
I recommend this product
good deal

turbo lag is gone! smooth acceleration with plenty of power.

Clayton H.
United States United States
I recommend this product
Even better than expected.

Made a bigger difference in performance and mileage than I could have imagined. Thank you.

United States United States
I recommend this product
Pro diesel module

So far it’s starting to work better doesn’t seem like it’s getting me a lot better fuel mileage but I average about 13.5 miles to the gallon per truck gauge but need to do the math and highway is like 16.5 per mile over all it’s working

Ross C.
United States United States
Satiisfied customer

Product works as advertised excellent

Jeanna R.
United States United States
Definitely Helps!!!

Came fast. Installed easy. Immediately saw a difference. 2016 Ram 2500. Hwy mileage went from 15 at beat to 19. Towing 5th wheel from 8-9 to 12-13.