Edge Insight CTS3 Review

Do you currently own a truck with an OBD2 port? If you do, you are a person that can benefit from one of many available performance monitors or digital gauge displays. They give you real-time data parameter monitoring and a number of other features that truly give you insight into how your vehicle is operating. There is one display that has been around for a while and is very familiar to most diesel truck owners, the Edge Insight CTS2. It features a large display, outstanding usability, and a ton of features that make it significantly better than most other performance monitors. Now I love the CTS2, but Edge recently released a new monitor called the Insight CTS3 that looks even more impressive. I lucked out and was given an Edge Insight CTS3 monitor to review.

After having the unit on my truck for over 10,000 miles it’s finally time to give you all my thoughts. Before I get into my Edge Insight CTS3 review however, I want to go over all the features this new digital gauge display offers and how it can benefit you and your truck. Let’s get into our Insight CTS3 feature breakdown.

Edge Insight CTS3 Monitor in my pickup truck
Edge Insight CTS3 Monitor Mounted on my truck’s windshield.

Edge Insight CTS3 Feature Breakdown

What is the Edge Insight CTS3 Performance Monitor And How Can it Help You?

The Edge Insight CTS3 Performance Monitor is a digital gauge display that can show you tons of different vehicle data and parameters in real time. It offers customizable dash layouts, so you can pick and choose what parameters you want to monitor. You can also set alerts, so when a certain parameter reaches a certain point, it will make a sound to alert you. It also offers a ton of other features beyond just being a digital gauge in a monitor. These include trouble code (DTC) reading and clearing, and a ton of features allowing you to customize your vehicle. In our next sections we’re going to highlight the most important Edge Insight CTS3 features that you ought to be aware of.

Real-time Data Parameter Monitoring

The most important benefit of purchasing an Edge Insight CTS3 is its powerful parameter viewing capabilities. The Insight CTS3 offers a huge, touchscreen display where you can display a ton of different parameters simultaneously. You can pick the individual parameters you want to monitor. You can even pick how and where they’re displayed.

Customizable Digital Gauge Display with 20 Different Layouts

Before performance monitors and digital gauge displays, you would need an individual old-school gauge for everything. Many truck owners would have multiple gauges incorporated into the side Pilars or mounted to the dash. While it worked, it doesn’t look nearly as good and you’re still limited to what you can view. Now with one unit, the Edge Insight CTS3 or other like it, you have a ton of different parameters at your finger tips.

The Edge Insight CTS3 has 20 different layouts you can choose between to view your PIDs. You can also adjust the colors or even the background image on every different layout too. This makes it not only very functional, offering a layout for pretty much everyone’s liking, but it also allows a personal touch.

Pairs with other Edge Devices

The Edge Insight CTS3 can pair with other Edge products to offer even more capabilities. You can pair the CTS3 with the L5P Duramax Pulsar Tuner to easily control power level shift-on-the-fly. You can also pair it with the Edge License-plate back-up camera, to add on a backup camera to your truck. The CTS3 also can control different accessories on your truck by acting as a switch. Aftermarket lighting, air compressors, and other accessories can be engaged or disengaged when you get the EAS Power Switch. This means no drilling into your dash or ugly switches installed in your truck.

Edge License Plate Back-Up Camera

Does your truck not have a back-up camera? Make hooking up to a trailer or even just reversing much easier with the Edge License Plate Back-Up Camera!

EAS Power Switch

Use your CTS3 to power different accessories with the EAS Power Switch upgrade.

EAS Data Logging Kit

The EAS Data Logging Kit offers two additional EGT sensors, two Boost sensors, and two other temperature sensors. This is the perfect kit for heavily modified diesel trucks with aftermarket turbos and other mods!

Code Reading & Clearing

Another capability of the Edge Insight CTS3 is its ability to read and clear trouble codes. Often when your diesel truck has a problem the truck will store a code that can help pin-point the problem. Most shops or dealerships have expensive code reading devices, but now for only a couple of hundred dollars, you can gain these same capabilities.

Performance Testing & Data Logging

The Edge Insight CTS3 allows you to test 0-60 mph times, 0-100 mph times, 1/8 mile, and 1/4 mile runs. You can also store this data on a newly designed track ticket style data sheet. The Edge Insight also allows data logging so you can capture PID data and export it if needed. This is especially useful when you tune your vehicle with custom tuning, so you can send your tuning company information on how your truck is running. It will allow them to make tweaks to improve performance and reliability.

Vehicle Customization/Updating Capabilities

Edge Insight CTS3 Review

Value & Price

At roughly $400, the Edge Insight CTS3 digital gauge monitor is similarly priced to other units commonly used on diesel trucks. Unlike other digital gauge displays however, the Insight CTS3 comes as a complete kit. It includes the mounting solution, an OBD2 hookup cable, and a USB cable for updates. Many other digital gauge displays require you to purchase the mounting solution separately.

The CTS3 monitor also offers a ton of “bang for the buck” with its huge list of features and capabilities. For $400 you get a code scanner, a digital gauge display, performance tester, and a ton of other vehicle-specific features depending on what type of truck you have.


The Edge Insight CTS3 has more sleek, modern look compared to the outgoing model, the CTS2. It has a 5″ high-definition touchscreen, and it features rounded edges and a thinner frame. It looks significantly less bulky when mounted on the windshield and significantly more luxurious too.

The CTS3 comes with a mounting kit that features a windshield mount that utilizes a suction-cup. The monitor then slides into place on the windshield mount in a matter of seconds. It installs or un-installs in a matter of seconds. This makes it easy to travel with, allowing you to hide it quickly when needed.

Now I love the physical design of the Edge Insight CTS3, but where it really shines isn’t its physical appearance. It’s the internal design. The CTS3 has an easy-to-use display that is simple to navigate. By simply swiping up on the monitor you can view the most important menu options without visiting the home page. You can also swipe down to access other CTS3 features. This makes accessing all of the CTS3’s features very easy.

Not only is the CTS3 easy to navigate, but it was also designed to be highly customizable. You can change gauge themes, colors, and even upload a unique background picture. I love this capability because it allows you to completely personalize your CTS3.

Edge Insight CTS3 Mounting And Set-up.


The Edge Insight CTS3 digital gauge display offers quick, reliable performance when hooked up in your vehicle. It turns on faster than the previous Insight, and also loads pages faster. It offers a highly customizable gauge layout where you can pick which PIDs or parameters you want to monitor. I love this capability because depending on what you’re concerned about, you can configure your gauge layout to view everything that is important at one time.

Available PIDs are dependent on what vehicle you have. Newer trucks like my L5P come equipped with EGT sensors so I didn’t need to add an EGT probe. On older trucks however, your truck might require the addition of a pyrometer.


Load times are less than the CTS2 but it still takes longer than a couple of seconds for the gauge screen to initiate. The CTS3 definitely offers smoother operation though. The new touchscreen is very responsive and unlike the previous model, it doesn’t glitch nearly as often. With the CTS2, sometimes the screen would switch between gauge layouts and other menus as if someone were pressing the screen.

One thing I am sad about it that Edge left the maintenance manager tool off of the CTS3. Maybe the tool wasn’t as popular amongst consumers, but I loved the ability to set alerts for different maintenance items. It kept stickers off of my dash and was a much more reliable tool than a calendar or phone notification.

CTS3 On the L5P Duramax

I tested the Insight CTS3 on my L5P Duramax. One feature that I really love is that I can control the power levels on my Edge Pulsar Tuner. This makes changing tunes easier, especially for others driving the vehicle. Other really useful CTS3 features for my L5P include the ability to initiate a manual regeneration, re-calibrating the speedometer for bigger tires, and even adjusting the TPMS sensors to accommodate different tire pressures.

If you have a 2017-2019 Chevrolet or GMC HD truck with the l5P Duramax engine, I strongly recommend the CTS3 and the Pulsar Tuner together. You can find out more information about this tuner in my Edge Pulsar Review.

Edge Pulsar L5P Duramax Tuner Review
Edge Pulsar L5P Duramax Tuner


When comparing the Edge Insight CTS3 to competitors and even the CTS2, the difference in quality is immediately clear. The unit has a more modern feel and design. Every feature works seamlessly. Even when connecting the CTS3 to other Edge products, it works like it’s supposed to. If you’re looking for a high-quality, digital gauge display this is it!

The unit itself seems capable of holding up in both extremely hot or cold climates. I’ve left the unit on my windshield in the Hot Summer Months in Florida and also in the Winter in the Smoky Mountains. Either way, the unit turns on and functions just fine.

Overall Thoughts

The Good

In my Edge Insight CTS3 review, I’ve listed a ton of my favorite features and how this digital gauge display can help you and your truck. It offers the most customization of any performance monitor available. The CTS3 can also help you keep an eye on literally hundreds of PIDS for better insight on how your truck is operating. It even can be used to add accessories like a backup camera for your vehicle, or even to control accessories like a light bar or air compressor when paired with the EAS Power Switch.

The Edge Insight CTS3 seems to exceed expectations in every way. It’s the highest quality performance monitor I’ve had on one of my trucks so far. Performance has also been improved over the previous model, the CTS2. It offers quicker loading times, it’s easier to navigate, and it doesn’t have the same glitches experienced in the previous unit. As far as digital gauge displays go, the Insight CTS3 is a home run!

The Bad

While my Edge Insight CTS3 review has been overwhelmingly positive, I do have some negative feedback as well. One of my favorite features, the maintenance manager has been discontinued and isn’t available on the CTS3. The Unit also doesn’t load quite as fast as I would like it to. In a time when we’re used to the instant load times of the latest iPhone, it can be frustrating waiting for a digital gauge display to load.

The Edge Insight CTS3 also doesn’t come with tunes. Instead, if you want tuning, you need to get the Edge Evolution CTS3. Just check and make sure that it has available tunes for your truck because tunes aren’t available for every single vehicle.

Buy The Edge Insight CTS3 on Amazon

Edge Insight CTS3 Digital Gauge Monitor Pictured Above. – photo taken from Edgeproducts.com

Edge Insight CTS3 Accessories

ProductPart #
Edge License Plate Backup Camera98203
EAS Power Switch98609
EAS Data Logging Kit98618

Edge Insight CTS3 FAQS

How Much Does the Edge Insight CTS3 Cost?

The standard price of an Edge Insight CTS3 Is around $400-$450.

What is the Edge Insight CTS3?

The Edge Insight CTS3 is a digital gauge display and performance monitor.

What is a performance monitor or digital gauge display?

A performance monitor, or digital gauge display, is a device that allows you to view hundreds of different vehicle parameters and information in real-time. The Edge Insight CTS3 is a perfect example because it lets you view things like EGTS, Coolant temperatures and other PIDS from one single monitor. These devices also often offer vehicle customization settings and code reading/clearing.

Does the Edge Insight CTS3 have tuning built in?

No, the Edge Insight CTS3 does not include any tuning. It can control power levels when paired with other Edge products however. I control the Power levels of my Edge Pulsar tuner for my 2019 L5P Duramax diesel with this device.

Will the Edge Insight CTS3 work on my truck?

If you have a 1996 or newer truck with an OBD2 port you can use the Edge Insight CTS3 on your truck. Parameters will be determined by what truck you have however. If you have an older truck with less OEM sensors built in, the Edge Insight CTS3 won’t include those parameters. You can add additional sensors to monitor EGTS, Boost, and more by adding EAS products. Find out more about these EAS add-ons in my Edge Insight CTS3 review.

Edge Insight CTS2 Review

What is the Edge Insight CTS2?

The Edge Insight CTS2 is a diesel performance monitor. Performance Monitors are a must-have upgrade for any diesel truck owner. They give you real-time insight and performance monitoring so you know exactly how your truck is running at any given time. They also give you tremendously helpful tools like trouble code reading and clearing, and performance testing. They’re extremely easy to install compared to traditional gauges, and they are highly customizable, allowing you to set up a number of different gauge layouts. While there are a couple of name brand performance monitors, the Edge Insight CTS2 is one of the most popular choices.

Edge CTS2 Insight Monitor
Edge Insight CTS2 Monitor

What Does the Edge Insight CTS2 Do?

If you use your truck for heavy hauling or if you’re a modified performance junkie, the Edge Insight CTS2 is one of the first performance upgrades you should consider. It utilizes the OBD2 Port to display detailed vehicle parameters like exhaust gas temperatures (EGTS), transmission temperatures, and DPF status. Unlike traditional gauges, the Insight CTS2 is a monitoring device that can be configured to your liking. You can adjust the layout, pick which specific parameters you want to display, and even set-up alarms to warn you if something is out of whack. Even a stock truck used for commuting can benefit from the addition of an Insight CTS2. It has a fuel economy coaching tool that can help you increase mpgs. There is even a maintenance tool that reminds you when it’s time for an oil change or other maintenance tasks.

Key Feature Breakdown

Diagnostic Tool

When your truck has a problem, you often find a warning light illuminated on the instrument cluster. While it alerts you to the problem, it doesn’t help you identify what the issue is. The CTS2 gives you the ability to read trouble codes, allowing you to identify the problem. Diagnosis becomes much easier, and sometimes fixing the problem can be as simple as clearing the code. Modern diesel trucks are very complex and there are a lot of sensors that can go bad. Sometimes a truck can even go into limp mode when there is an issue. By clearing the code, you may be able to limp your truck home, saving you from paying an expensive tow.

Gauge Display & Performance Monitoring

In the past, gauges had to be installed if you wanted to view performance parameters that weren’t available in your instrument cluster. Today, monitors like the Edge Insight CTS2 offer digital gauge displays that adjust to your preferences. Installation is way easier than traditional gauges, and digital monitors also offer insights that traditional gauges can’t display. After you’ve set up your display to your liking, it’s also very easy to change layouts and parameters quickly if you want to take a look at something else.

One feature that makes the Insight CTS2 unique is it offers you the ability to set-up audible and visual alerts. This way, even if you’re not paying attention, you’ll know when a temperature gets too high or if another problem occurs.

Edge CTS2 Gauge Layout Options
Different CTS2 Gauge Layouts

Other Noteworthy Features

Maintenance Manager

The CTS2’s maintenance manager is one of my favorite features. You can input a variety of maintenance tasks and set up mileage alerts that notify you when it’s time for service. This is a great tool if you service your vehicle yourself, because you won’t forget when it’s time to change your oil or fuel filter.

Fuel Mileage Coach

Another cool feature is the Fuel mileage coach. You can set up different parameters for fuel economy on your main gauge layout. Then, the Edge CTS2 will keep track of your average fuel economy and give you tools to keep track of your true fuel mileage. You can even input the cost of diesel or gasoline in your area, and it will calculate your average cost per mile.

Diesel Resource Review of the Edge CTS2 Insight Monitor

Now that you know the impressive features of the Edge Insight CTS2, I want to tell you about my experience using it with my L5P Duramax. I’ve used this monitoring device on my other trucks and I loved it. Let me tell you what makes this performance monitor so special and i’ll elaborate on the few things I think it lacks.

Value & Price

The Edge Insight CTS2 costs an average of $430. While it’s slightly higher than some of the other performance monitors on the market, like the Bully Dog BDX I’ve previously reviewed, it’s worth the higher price. There is more value when you purchase the Insight CTS2 as you get a complete kit. It includes a mounting solution which many of the other competitors do not. No stock tunes are included though, if you want some basic box tunes you’re better off going with the Edge Evolution CTS2, which still offers the same data monitoring capabilities with the added benefit of box tunes. Recently, Edge released their Insight CTS2 Pro which is the Insight CTS2 with custom tuning capabilities through HP tuning software.


The CTS2 monitor is one of the premium monitors on the market. The design has much to do with it. The kit is designed to be a complete and simple installation, utilizing the OBD2 port and a suction cup mount. The cable that connects the CTS2 to the OBD2 port is small and doesn’t feature any extra boxes or connections that make hiding the cable difficult. Everyone wants a clean install, and that’s exactly what you get with this monitor. Edge also makes dash, pillar, and center console mounts that can make the installation look even better.

Edge CTS2 Insight Suction Cup Mount
Edge Insight CTS2 installation in my L5P Duramax Using the supplied Suction Mount
Center Console Mount for Edge CTS2 Insight on 2015-2019 Duramax trucks
2015-2019 GMC/Chevy Center Console Mount to be used with the
Edge Insight CTS2.

Another important design feature I really like is that the suction-cup mount doesn’t use a magnet to hold the monitor. I can’t tell you how many times when I’ve used competitor’s products, the monitor falls off the mount when I make a turn. I haven’t had that problem a single time since I’ve installed this product on my L5P Duramax.

The overall design of this monitoring device is exceptional. The monitor itself is sleek, featuring a touch screen to change screen. Everything is very customizable to personal preferences. You can change displays, layouts, and even upload a custom picture to display in the background. Another exciting design feature is that this product has a bunch of accessories that can be used in conjunction with it. These include things like pyrometers, switches, and additional sensors.

Updates are done over the internet by plugging in the device to a computer. That brings me to my only complaint about the design, being the lack of easy updating via the cloud and wifi. I think that one addition could take the product to another level and make it much more convenient to update the device.


There are a lot of tools and features that make this performance monitor a good investment. The primary reason we all get this product is because we want to monitor critical parameters, but this unit offers much more than just a digital gauge display. The diagnostic feature is extremely useful. While my L5P Duramax is too new to have problems, i’ve used the CTS2 on some of my work trucks in my family’s air conditioning company to identify problems. Even on a new diesel though, this product can be very useful. You can force a manual regeneration event to clean the diesel particulate filter found on newer diesel trucks. You can also performance test your truck to find out quarter mile and 0-60 mph times.

In the era of immediate gratification, we expect things to work immediately or very fast. I’ve seen in some reviews of the CTS2 that people complain about the loading screen time when turning on the unit. While it doesn’t boot immediately, by the time i’ve put on my seat belt, plugged my phone, and i’m ready the drive, the unit is one my gauges. I think the gauge display loads very fast compared to other units i’ve owned.


While it may not load as fast as we’d like it to, the one issue i’ve never had is that it doesn’t turn on. Other performance monitors i’ve used don’t turn on when I turn my truck on. I have to unplug the unit from the OBD2 port and then plug it back in for it to turn on. The Insight CTS2 is consistent. It’s always worked. I had a CTS2 unit sitting in one of my drawers for two years. When I graduated college, I re-installed it, and it worked perfectly still! That speaks a lot about the quality of this product.

Another impressive factor is that I keep my CTS2 hooked up on my windshield everyday. I live in Florida, where it’s consistently scorching hot. My unit has survived this extreme heat and sun exposure without any issues.

Overall Thoughts

The Good

If you’re looking for strictly a performance monitor, the Edge Insight CTS2 is one of the best options available. It gives you a lot of features that are very useful, and once you have them, it’ll be hard to survive without them. This product offers one of the most customizable and comprehensive gauge layouts. It’s reliable, and it comes with everything you need to install it and put it to work immediately.

The Bad

The major downside to the CTS2 versus other products like the Bully Dog BDX is that it doesn’t offer box tunes or custom tuning. If you want to tune your truck, you have to use the Edge Evolution for box tunes or the Edge Insight CTS2 Pro for custom tuning with HP tuning. It also has to be updated by plugging into a computer directly which is a little outdated compared to some other options that update automatically via the cloud.

Buy the Edge Insight CTS2 on Amazon

Buy this product by clicking on the picture below! If you’d like more information, check out the Edge Products Website.

Buy it HERE.

Edge Insight CTS2 Accessories

Product DescriptionLink to Buy
SOTF (Shift-On-The-Fly) Accessory
11-14′ 6.7L Powerstroke
15′-19′ 6.7L Powerstroke
10-18′ 6.7L Cummins
01′-04′ LB7 Duramax
04.5′-10′ LLY, LBZ, LMM Duramax
11-16′ LML Duramax
See Below