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Duramax Edge Insight CTS3

#1 preferred digital gauge monitor
5" full-color capacitive touch screen display
Performance meter measure 0-60mph, 1/4 mile, & more
NOTE: This product has the following shipping restriction(s):
  • This product is not available for shipping to California
Pricing: $462.95

NOTE: This product has the following shipping restriction(s):
  • This product is not available for shipping to California
Free Ground Shipping Within The Continental US


The Edge Insight CTS3 is the #1 preferred digital gauge monitor used by daily drivers and enthusiasts. It is hands down the best monitor for Chevy Duramax diesel engines. The CTS3 is a great monitor for those who don't want to tune or modify their Duramax or for anyone with performance upgrades looking for a state-of-the-art monitor.

Edge Insight CTS3 monitors are not able to tune your Duramax, so any tuning or tuner devices must be done separately. However, certain tunes like EFI Live (often regarded as one of the best Duramax tunes) do not have monitoring capabilities. Other Duramax tuners have monitoring capabilities, but often with lackluster displays and gauges.

Enter the 3rd generation Edge Insight CTS3. This monitor offers a 5", full-color, capacitive touch screen with auto-dimming. The gauges and backgrounds are highly customizable and there's even an accessory system to control switches for lighting, winches, compressors, etc. Duramax Edge Insight monitors also offer built in performance meters to measure 0-60, 1/4 mile times, and more.

Duramax Edge Insight CTS3 Features

  • 5" full-color touchscreen w/ auto-dimming
  • Monitor key parameters like EGT, regen, trans temp, boost, & dozens more
  • Built in performance measures 0-60, 1/4 mile times, and more
  • Highly customizable gauges & backgrounds
  • Swipe between screens with different gauge displays
  • Advanced data logger with export capability
  • Read and clear DTC codes
  • Simple OBDII plug and play installation
  • Includes windshield mounting bracket

The Edge Insight CTS3 is hands down the best monitor for all Duramax diesel engines including the L5P, LB7, LBZ, LLY, LML, and LMM. We also offer the Edge Evolution CTS3 which is the same monitor as the Insight but adds in tuning capability. However, combining EFI Live tunes with the Insight CTS3 monitor is often considered the "holy grail" for Duramax tuning setups.

Anyway, this monitor has no shortage of awesome features and customization. Its 5" full-color touch screen and easy navigation make it an excellent monitoring and logging device. Track dozens and dozens of important parameters and easily swipe between screens with highly customizable gauges and backgrounds.

Chevy Duramax Edge Insight CTS3 monitors also feature an advanced data logger and the ability to read and clear DTC codes. Simply plug the CTS3 into your OBDII port, mount it to your windshield with the included bracket, and enjoy the many benefits of the best Duramax monitor on the market.

Duramax Insight CTS3 Customization

  • Hundreds of combinations of gauges in digital or analog format
  • Set audible and/or visual alerts if certain parameters are met (i.e EGT too high, AFR's out of range, etc.)
  • Expandable Accessory System (EAS) compatible for additional sensors, switches, lighting, and more
  • Supports backup camera installation and displays on Insight CTS3 monitor
  • Adjust background screen, arcs, needles, colors, and more

Ultimately, the Duramax Edge Insight CTS3 offers too much customization to summarize in words. If you're looking for a Duramax diesel monitor and datalogger with excellent features and customization then look no further.

Why should I buy the Insight CTS3 over the Evolution CTS3?

The Edge Evolution CTS3 is also a great monitor (same monitoring and customization as the Insight) but also acts as a tuner device. The Evolution tuner + monitor combo is a great choice if you just want one simple package to meet your tuning and monitoring needs. However, if you're looking for the ultimate Chevy Duramax setup then we highly recommend going with the EFI Live tunes. EFI Live does not offer any monitoring features, which is where the Edge Insight CTS3 comes into play. Pairing an EFI Live tune with the Insight CTS3 is often considering the best all-around tuning and monitoring setup for the Duramax diesels.

Have more questions or looking for more details & info on the Edge Insight? Check out the FAQ tab above or hit the chat button to connect with us directly!


Does the Duramax Insight CTS3 work as a tuner?
No, the CTS3 is simply a monitor and does not support tuning. However, the Edge Insight CTS3 is compatible with tuners as long as the OBDII port remains free.

How does the CTS3 work with tuners?
Most tuners will require temporary use of the OBDII port to flash the tune to the engine control unit. Once flashed, the OBDII connection can be removed and the CTS3 is then simply plugged into the OBDII port. The Edge Insight CTS3 is simply a monitor and datalogger, so it will not interfere with or change the tune.

Is the Chevy Duramax Edge Insight CTS3 the best monitor?
The Insight CTS3 is often regarded as the best monitor for Duramax diesel engines. We also offer the Edge Evolution CTS3 which offers the same monitoring and logging features, and also adds in tuning capability.

Why doesn't this ship to California?
The Duramax Insight CTS3 is CARB-compliant and legal for use in all 50 states (since it does not change any emissions or performance and simply reads parameters). However, most products we offer are not CARB-compliant so we don't currently ship to California.

Shipping Information

  • Item Requires Shipping
  • 2.0 lbs.
  • W6.0000” x H4.0000” x L9.0000”
  • Free Ground Shipping Within The Continental US

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