Diesel engine tuners are cute little devices; they are used to help you tweak up your engine’s performance by increasing the HP and torque through optimizing engine functions.

So, if you want to make your vehicle the pride of the State, come on in, read up to this review and decide which one of these lil’ beast makers are the best diesel tuner for your 6.7 Cummins engine.

The 6.7 Cummins isn’t only known for its top-shelf abilities but also for the amount of tuning you can do to the diesel motor. So if you’ve got a Ram 2500/3500 and are ready to bring it closer to its maximum potential, here’s a list of diesel tuners to help you. Hop on as we look at the popular choices for the best tuner for 6.7 Cummins available on the market right now.

The Best Tuner and Programmer for 6.7 Cummins:

Preview
#1 The Best
13-18 Ram 6.7L Cummins Juice w/ Attitude CTS2 - 31507
#2
Smarty Tuners 98.5+ Dodge/Ram Cummins Touch Tuner
#3
RaceME ULTRA DPF Delete Programmer 07.5-16 Dodge Cummins 6.7L
#4
Superchips 4845 Flashpaq F5 California Edition Tuner
#5
Edge Products 84130 Insight Monitor
Name
13-18 Ram 6.7L Cummins Juice w/ Attitude CTS2 - 31507
Smarty Tuners 98.5+ Dodge/Ram Cummins Touch Tuner
RaceME ULTRA DPF Delete Programmer 07.5-16 Dodge Cummins 6.7L
Superchips 4845 Flashpaq F5 California Edition Tuner
Edge Products 84130 Insight Monitor
Our Rating
Prime
-
-
-
CARB Exempt
Works with Deletes
Superchips says it will work with other performance upgrades, but delete capability has not been directly stated.
Real-time display
#1 The Best
Preview
13-18 Ram 6.7L Cummins Juice w/ Attitude CTS2 - 31507
Name
13-18 Ram 6.7L Cummins Juice w/ Attitude CTS2 - 31507
Our Rating
Prime
CARB Exempt
Works with Deletes
Real-time display
#2
Preview
Smarty Tuners 98.5+ Dodge/Ram Cummins Touch Tuner
Name
Smarty Tuners 98.5+ Dodge/Ram Cummins Touch Tuner
Our Rating
Prime
-
CARB Exempt
Works with Deletes
Real-time display
#3
Preview
RaceME ULTRA DPF Delete Programmer 07.5-16 Dodge Cummins 6.7L
Name
RaceME ULTRA DPF Delete Programmer 07.5-16 Dodge Cummins 6.7L
Our Rating
Prime
CARB Exempt
Works with Deletes
Real-time display
#4
Preview
Superchips 4845 Flashpaq F5 California Edition Tuner
Name
Superchips 4845 Flashpaq F5 California Edition Tuner
Our Rating
Prime
-
CARB Exempt
Works with Deletes
Superchips says it will work with other performance upgrades, but delete capability has not been directly stated.
Real-time display
#5
Preview
Edge Products 84130 Insight Monitor
Name
Edge Products 84130 Insight Monitor
Our Rating
Prime
-
CARB Exempt
Works with Deletes
Real-time display

1. Best All-rounder: Edge Products Juice w/Attitude CTS2 – 31507 – the best tuner for 6.7 Cummins

Our best tuner for 6.7 cummins just by the name, should not be confused for some tropical smoothie maker, as it is more of a bodybuilders steroid juice maker. This is one of the best diesel engine tuners for the 6.7 Cummins engine on the market. It is an in-cabin controller that connects to your EAS and performs constant checking and upgrading based on your presets.

This Edge Product Juice With Attitude has five different power levels which you can toggle as “shift on the fly.” The overall result is a controlled gain in horsepower which you can control from its newly designed sleek touchscreen panel.

The Edge Products 31507 is a combination of a monitor (that displays your trucks performance and various other parameters) and an in-cabin controller for the Juice module. It allows shift-on-the-fly power tunes, accessed with the help of a touchscreen monitor. Very handy!

Made for 2013-2018 6.7 Cummins Ram 2500/3500 trucks, the 6.7 Cummins tuner offers increments of up to 150 hp and 350 lb-ft, depending on your truck’s model. There are five tunes that can be accessed on the go, whereas a sixth one requires an additional unlocking fee.

Edge Products claims that the tuner comes with an ability to go back to the stock/factory tune on demand. But on using the pre-defined power levels, there’s bound to be an improvement in the truck’s low-end grunt, and the tuner also doesn’t miss out on safety features like cold-engine protection, backdowns, turbo timer, etc.

The Attitude CTS2 monitor bundled in Edge’s 6.7 Cummins tuner kit is feature-packed. The high-resolution display gets an HDMI-style plug for hooking up accessories and EAS. It has five swipe screens, an ability to auto-dim when the ambient light goes down (like at night), customizable backgrounds, needle styles, and screen layouts. And if that wasn’t enough, the kit can be updated using the internet. That ensures that not only is your truck more powerful, it’s also made to run with the latest tuning software as well.

It comes in a new slim and sleek case design. The swipe (touch) screen comes in high-res with full color, and you can customize the gauges colors, arcs, needles, and backgrounds to suit your preferred look and feel.

This is a fully customizable GUI (which is software speak for graphic user interface) this mean you can change the gauge layouts anyway you like, and change the backgrounds to make the viewing easier. This model comes with an HDMI style power plug and EAS accessory connections.

The menu is a touch screen with easy navigation, one touch for all your requirements. It also comes with a nifty notification center and the ability to use any one of the power presets. This device will add up to 150 HP of juice and 250 ft. Lbs of Torque.

For the final touch, aimed at us late night drivers, the screen has a light sensitivity meter which will lower the ambiance, so we don’t get distracted by all the lovely colors while we drive around in the pitch black of night. You will update and upgrade this packages software and data through the internet.

No tunes for deletes

While the tuner itself is legal for use in 50 states and also comes with a CARB exemption, Edge Products maintains that the tuner doesn’t support 6.7 Cummins deletes. But the device itself supports ECU unlocks, so if you have deleted your 6.7 Cummins and have access to a custom tune, you can still use it. Our suggestion is to get in touch with Edge Products for more clarity on this.

What do we think of it?

If you’re looking for possibly the best diesel tuner for 6.7 Cummins in all-round performance, the Edge Products Juice with Attitude can be a good purchase. The only limitation is that it doesn’t allow deletes, but with a variety of maps — and the ability to go back to stock form — makes it unmissable.

Pros

Pros
  • Tremendous Power Gains
  • High-res monitor
  • Shift on the fly
  • CARB exempt

Cons

Cons
  • Doesn’t allow deletes

 


2. Combination of choice: Smarty Tuners 98.5+ Touch Tuner

Smarty Tuners 98.5+ Dodge/Ram Cummins Touch Tuner
5 Reviews
Smarty Tuners 98.5+ Dodge/Ram Cummins Touch Tuner
  • Innovative engineering, extensive field testing
  • Exceptional quality control
  • Provides longer Brake life and performance

Another combination device on the list, the Smarty Tuners 98.5 Touch Tuner for 6.7 Cummins is available for both 6.7 Cummins and the model that preceded it, the 5.9 Cummins. Compatibility for the 6.7 Cummins is from model year 2007.5 onwards to 2012. If you have a truck that’s made after that, you’ll additionally need to purchase a COM module. 

There are 10 power levels to choose from, including one for reduced power. The maximum power gain that can be achieved with the Smarty Tuner for 6.7 Cummins, according to the brand, is 170 hp. But it’s not just the power boost that gets people talking about the tuner.

Speed limiter and power on demand

It boasts a variety of features like a twin CPU so that the monitor and the module both have individual processing power. It also can be upgraded via the internet, comes with the ability to save multiple tunes on a microSD card, has a programmable speed limiter, and on the older trucks (2007-2009 6.7 Cummins), there’s a power-on-demand feature as well.

The monitor is a 4.3-inch display, which offers four dashboards with five different gauges. The display background can be customized, and it claims to be the fastest display in the industry, among other things. While you can monitor EGT with the help of an optional probe fitment, the tuner is set to work with DPF in place.

What do we think of it?

Connect this to your truck’s OBD-II port and you’re good to go. Smarty Tuners offers a wide variety of power levels and a variety of features. Also, if you happen to own the earlier 5.9 Cummins truck, this makes for a good choice.

Pros

Pros
  • Massive power gains
  • Twin CPU
  • Power on demand on earlier trucks

Cons

Cons
  • Newer RAM trucks require an additional COM module
  • Not for sale in California

 


3. For the Pros: RaceME Ultra Tuner for RAM Truck 2500/3500

RaceME ULTRA DPF Delete Programmer 07.5-16 Dodge Cummins 6.7L
10 Reviews
RaceME ULTRA DPF Delete Programmer 07.5-16 Dodge Cummins 6.7L
  • INCLUDES ALL NECESSARY HARDWARE TO UNLOCK THE ECM AND TUNE 2013+ AND NEWER!
  • All Pickup Models 2007-2018
  • Cab & Chassis Models 2007-2010 without DEF
  • Cab & Chassis Models 2013-2018 with DEF
  • Shift-On-The-Fly tuning is available on the 2010-2018 Cummins 6.7L!!!

But what if you were looking for a tuner to accommodate DPF and EGR deletes on your truck? Or something that could make more power and offer an even wider array of features? That’s the RaceME Ultra Tuner’s strong point. Compatible with 2007.5 – 2018 6.7 Cummins trucks, the 6.7 Cummins tuner by RaceME is made only for off-road/competition purposes.

Massive power gains and delete support

The key features of the tuner include an ability to extract up to an extra 200 hp, clear error codes, and even disable EGR and DPF. Although the brand recommends hard part removal in the case of EGR. There’s also transmission tuning (non-Aisin gearboxes) available, in addition to real-time tuning, which can affect the timing, VGT (variable geometry turbocharger), etc.

The monitor comes with multi-gauge layouts, and the onboard software can be updated with the help of a microSD card — it gets monthly free updates. The tuner also helps recalibrate the speedometer (in case you’re using non-stock tires on the truck), comes with TPMS, and even offers customizable injection timing for desired performance/economy gains.

Most importantly, if you’re just looking for a tuner to run with your deleted truck, then the RaceME fits the bill perfectly. It offers power increments in a total of five stages, and the first stage (Stage 0) is to run on stock power but with EGR/DPF delete.

The RaceME ULTRA – Dodge Ram Cummins Diesel 6.7L (2007.5-2018) comes with all the hardware ready to unlock the ECM, this allows you to tune any model from 2013 and above. Since June 2018 the TPMS software feature includes a PSI threshold adjuster that removes the warning message.

This RT software enables you to program on the fly including adjusting the timing, duration, VGT, and rail pressure. When you press the “program” button, the system works automatically and includes transmission tuning for stock transmission in 2010-2017 models.

The software package includes raised line pressure in all forward gears as well as during the shifts. It also Increases shift firmness for less clutch slippage, and changes shift points at WOT in all gears @ 3000 RPM. It provides 6th gear unlock and downshift avoiding massive torque and making longer transmission as well as setting the line-pressure to 225psi. The altered throttle position value raises the line pressure rises faster.

All this comes in a neat modern design with touch screen and gauge monitoring options. The monitor comes with a customizable user layout, and the memory supports all 2007 files and above. The system can be updated via the internet and comes with a MicroSD slot.

This model is extremely versatile, and it will read and clear all diagnostic codes as well as disable the diesel particulate filter, the diesel exhaust fluid and the turns the EGR off. Post-injection is turned off during tune-up, and it provides recalibration of the speedometer when using non-stock sized tires.

The RaceMe Ultra will add 200HP to your engine’s performance, and the unit comes with an optional EGT sensor that is accurate up to 2200oF. The Ultra has a special ECM recovery function, which kicks in if the program sequence is interrupted.

What do we think about it?

Not only a lot of features/tuning possibilities, but the RaceME Ultra also gives you the choice of running your deleted 6.7 Cummins Ram 2500/3500 on stock power. And it doesn’t skimp on basic features like speed limiter, either. It’s a bit expensive, though. Can it be the best programmer for 6.7 Cummins? Yes.

Pros

Pros
  • Tuning possibilities are endless
  • Wide compatibility

Cons

Cons
  • Expensive
  • No Highway use

 


4. Inconspicuous choice: Superchips Flashpaq F5 Tuner

Superchips 4845 Flashpaq F5 California Edition Tuner
29 Reviews
Superchips 4845 Flashpaq F5 California Edition Tuner
  • Superchips 4845 Flashpaq F5 Programmer; Industry Leading Handheld Tuner; California Edition;

If you’re not convinced with the idea of mounting a larger touchscreen to keep an eye on your truck’s performance or if you’re just looking for a simpler solution, the Superchips Flashpaq Tuner promises to do the job well. It’s a handheld tuner, compatible with 6.7 Cummins Ram 2500/3500 trucks (model year 2007 – 2010), that connects to the OBD port of your truck, and essentially does everything that you’d want with a mid-tier product.

The 50-state-legal tuner offers the ability to adjust speed, rev limiter, shift points, shift firmness, etc. There’s also active fuel management control, and with this, you’ll also be able to read and clear diagnostic codes. The speedometer can also be corrected as well.

Multiple power modes

The tuner itself can be updated from the Internet using USB, and while it doesn’t have a full-fledged screen like the others here, this gets a 2.8-inch color screen with limited graphical user interface (it’s not a touchscreen). The power levels available with this include economy, towing, daily driving, and extreme tuning.

What do we think of it?

At a fraction of the cost of other tuners, the Superchips 6.7 Cummins tuner offers a list of useful features. If you’re looking at a simpler alternative to full-fledged tuner setups, this can be a good choice.

Note: While Superchips mentions that the 6.7 Cummins tuner is 50-state legal, do check with the seller regarding its compatibility with your truck and the corresponding CARB status.

Pros

Pros
  • Inexpensive
  • Good features for the price
  • 2-year powertrain warranty

Cons

Cons
  • Handheld so no separate monitor
  • Power gains aren’t huge

5. Real-time monitoring: Edge Products Insight CTS2 – 84130

Sale
Edge Products 84130 Insight Monitor
240 Reviews
Edge Products 84130 Insight Monitor
  • 5” full–color, high-resolution, swipe screen
  • Multiple gauge screen layouts
  • Available for 1996 and vehicles equipped with an OBDII (diagnostic) port
  • Custom color mixer for gauge arcs, needles, and backgrounds
  • EGT Pyrometer Probe sold separately

Investing in a monitor can be a good idea for a number of reasons: if you’ve modified your truck and want to keep an eye on how it performs in real-time, if you want to keep it stock for now but are looking at lateral upgrades, or if you’ve already upgraded and just need a display to track the performance gains. This Edge Products Insight monitor is a choice you will not regret.

OBD-II and HDMI

The Insight depends on the OBD-II port to connect with your truck and HDMI-style plug for power and hooking up EAS accessories. With fully customizable backgrounds, a one-touch menu, notification center, and multiple-gauge screen layouts, the monitor is compatible with other tuning devices. 

It can be updated from the Internet, comes with 5 full-color, high-resolution swipe screens, and can also be programmed to make audio and visual alerts. The high-quality screen also lowers its brightness automatically making using it at night a strain-free experience.

What do we think of it?

Instead of installing a plethora of analog gauges or depending entirely on your smartphone apps for readouts, the Insight GTS2 can prove to be a more intelligent upgrade. It’s not cheap, but it can be a life-saver.

Pros

Pros
  • Feature-rich
  • Easy to connect

Cons

Cons
  • Not a tuner per se

 

What’s the Best Tuner for 6.7 Cummins?

Like other forms of modification, tuning also requires some restraint. It’s tempting to go all-out on the settings, but you need to keep in mind that with the increase in power, there will be an additional strain on internal engine components and running gear. And while the 6.7 Cummins has maintained a strong reliability record, it’s a good idea to seek professional advice before tuning. So just keep that in mind while you’re tuning/choosing a tuner for 6.7 Cummins Ram 2500/3500. That’s an issue you’re less likely to face if you’re upgrading other relevant components as well.

What we have here is a list of preset tuners that will make your life ever so much easier. Sure, it’s not really good to go around playing with your engines tuning if you don’t know what you are doing, and that is why there are pre-set models that do this tuning for you. A preset tuner has been designed by professionals to be an automated fast calibration tool.

These tuners are all fully interfaced and have customizable screens to make your life easier. The larger screen models all provide an efficient GUI (graphic user interface) experience that enables you to change the colors, font sizes in some cases and backgrounds. All this fine gadgetry is important since it makes the review process easier to digest.

However, the critical issue here is traceability. These models leave no footprint, the last model reviewed is a legal model only sold to professional mechanics, and I included it because anyone with a business can basically order it. So, if you are an independent contractor that has a Cummins 6.7L you just need to give your business license, and off you go.

No matter what unit you buy, after changing the tuning, make sure you always return the setting to factory presets before taking it into any checkup, and if you are pulled over by the DOT make sure you press the factory preset button asap.

If you’re looking at keeping track of how your truck performs, the Edge Products Insight is a great choice. Since it’s also compatible with other tuners, you can look at it as an investment, should you plan to upgrade your truck in the future. The Superchips Flashpaq is a no-nonsense handheld tuner that does its job well and doesn’t occupy too much space in the cabin, given its form factor. The combination kits (Edge Products Juice and Smarty Tuners) both offer a great entry point into the world of tuning. The RaceME Ultra takes it to a different level, with support for EGR and DPF delete. With an ability to extract an extra 200 hp, it can be an easy favorite for those looking at outright power gains.

Looking instead to find tuners for the smaller litre counterpart of the 6.7 Cummins? Check out our page on the best tuner for 5.9 Cummins.