Edge CTS4 vs CTS3: Specs, Full Lineup

Edge CTS4 vs CTS3: Specs, Full Lineup

October 28, 2026
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Edge CTS4 vs CTS3: Specs, Lineup and Nov 3 Release Date

Edge CTS4 vs CTS3: Specs, Full Lineup and November 3 Release Date

The Edge CTS3 has been the most common screen on the A-pillar of a working diesel for years. On October 20, 2026, Edge replaced it. The new CTS4 platform brings a bigger 5.5 inch touchscreen, a dual-core processor with 3.4 times the power, four times the memory and a boot time Edge rates at under 12 seconds. It also brings a new set of part numbers across every Insight, Evolution, Juice with Attitude, EZ, EZX and Pulsar package. This guide covers what changed, what it means on a Power Stroke, Cummins or Duramax, which CTS4 to buy for your truck, and when it ships.

Pre-order status: The Edge CTS4 is on pre-order. Edge's official release date is November 3, 2026, and no CTS4 can ship before then. Place your pre-order now and it ships as soon as our allocation arrives from Edge.

Pre-order the Insight CTS4 (84130-4)

The quick answer

  • What it is: the CTS4 is Edge's next-generation in-cab monitor and tuning platform. It supersedes the CTS3, and most part numbers change only their suffix, from -3 to -4.
  • What is new: a 5.5 inch screen (21% more viewing area), a 1.7 GHz dual-core 64-bit processor, 2 GB of RAM, 60 FPS gauges, rear quick-action buttons, Maintenance Minder, enhanced peak recall, custom alert messages, a direct RCA backup camera input and USB-C.
  • What it costs: the monitor-only Insight CTS4 is $599.95, $50 more than the Insight CTS3. Power packages run from $799.95 to $1,599.95.
  • Should you upgrade? Buying new, yes: the CTS4 is the platform Edge will develop for going forward. Already running a CTS3? Upgrade if the slow boot and laggy gauge changes bug you, or if you want the camera input and Maintenance Minder. Juice owners can swap just the screen with the Juice CTS4 Upgrade Kit.
  • When it ships: November 3, 2026.
In this guide
  1. CTS4 vs CTS3 specs, side by side
  2. Every new feature, explained
  3. What the CTS4 does for a diesel that tows
  4. Which CTS4 is right for your truck
  5. CTS4 picks for Power Stroke, Cummins and Duramax
  6. CTS3 to CTS4 part number cross-reference
  7. Should you upgrade from a CTS3?
  8. Installation
  9. Release date and pre-order details
  10. FAQ

Video: Edge Products, "Meet the all-new CTS4. Take Control." Edge's official launch walk-through of the new hardware and screens.

Edge CTS4 vs CTS3 specs, side by side

Edge kept the overall footprint close to the CTS3, so the CTS4 fits where your old screen did. What changed is inside the housing. The table below lines up the published numbers for both generations.

Spec Insight CTS3 (84130-3) Insight CTS4 (84130-4)
Screen 5.0 in touchscreen 5.5 in capacitive touchscreen, 21% more viewing area
Processor 1 GHz single-core 1.7 GHz dual-core 64-bit (3.4x the processing power)
RAM 512 MB LPDDR3, 800 MHz 2 GB LPDDR4, 3400 MHz
Live data refresh 10 to 30 FPS 60 FPS
Cold boot About 40 seconds Under 12 seconds
Parameter (PID) change About 20 seconds About 10 seconds
Rear quick-action buttons No Yes, programmable
Maintenance Minder No Yes
Peak recall Basic Enhanced, shown beside live gauges
Backup camera Adapter required Direct RCA input
Alerts Audible and visual Adds custom alert messages
Updates Wi-Fi Improved Wi-Fi plus USB-C
Data logging, DTC read/clear, 5V inputs, auto-dimming Yes Yes
EAS accessories and mounts Yes Yes (dash pod mounts excepted)
Price at Alligator $549.95 $599.95

Specs from Edge Products' CTS4 launch materials. Supported parameters and functions vary by vehicle.

Seconds spent waiting: Insight CTS3 vs CTS4 Edge-published launch benchmarks. Shorter bars are better. CTS3CTS4 0s 10s 20s 30s 40s Cold boot to gauges CTS3: about 40 seconds 40 sec CTS4: under 12 sec under 12 sec (70% less waiting) Entering the monitor screen CTS3: about 10 seconds 10 sec CTS4: about 3 sec about 3 sec (70% less waiting) Changing a gauge parameter (PID) CTS3: about 20 seconds 20 sec CTS4: about 10 sec about 10 sec (50% less waiting) Edge figures as published at launch (October 2026). Real-world times vary with vehicle and number of gauges.

Figure 1. Edge's launch benchmarks for the three waits CTS3 owners complain about most. The cold-boot gap is the one you feel every single morning.

Those three numbers are the whole story for most CTS3 owners. The CTS3 was never short on features; it was short on patience. Forty seconds of boot means you are often a mile down the road before your gauges come up, which is exactly when a cold engine and a heavy trailer make you want them. On the CTS4 the screen is live before you pull out of the driveway.

How much more hardware the CTS4 packs Each CTS4 spec as a multiple of the CTS3 (CTS3 = 1x) 0x 1x 2x 3x 4x 5x Viewing area (5.5 in vs 5.0 in) 21% more screen area 1.21x Max live-data refresh (60 vs 30 FPS) CTS3 refreshed at 10 to 30 FPS, CTS4 at 60 FPS 2x (up to 6x vs 10 FPS) Processing power (1.7 GHz dual vs 1 GHz single) Edge rates the CTS4 at 3.4x the processing power 3.4x RAM capacity (2 GB vs 512 MB) 2 GB LPDDR4 vs 512 MB LPDDR3 4x Memory speed (3400 vs 800 MHz) 3400 MHz vs 800 MHz 4.25x Source: Edge Products CTS4 launch specifications. CTS3 baseline

Figure 2. Every core hardware spec on the CTS4 is a multiple of the CTS3. The memory upgrade is the largest jump, and it is what lets the CTS4 run more gauges at 60 FPS without lag.

Every new CTS4 feature, explained

A bigger, faster 5.5 inch screen

Half an inch of diagonal sounds small, but it works out to 21% more area. Combined with the jump to a 60 FPS refresh rate, needles and digital readouts move smoothly instead of stepping. Edge calls it up to six times smoother than the slowest CTS3 refresh. The screen is capacitive and auto-dimming, so it responds like a phone and does not blind you on a dark highway.

Dual-core processor and 2 GB of memory

The 1.7 GHz dual-core 64-bit chip and 2 GB of LPDDR4 are why the CTS4 boots in under 12 seconds and changes a gauge in about 10. Edge also says the extra headroom is there for more complex vehicle communications and future software features, which matters because the CTS4 gets new capabilities through Wi-Fi updates over its life.

Programmable quick-action buttons

New buttons on the back of the housing can be set to the things you do most: read trouble codes, start and stop a data log, switch to the backup camera, or change power levels on compatible tuning systems. On a washboard road with a trailer behind you, a physical button beats hunting for a spot on a touchscreen.

Maintenance Minder is back

CTS2 owners had service reminders and lost them on the CTS3. Edge says customer feedback brought them back. Set intervals for oil, filters, fluids and tires, and the CTS4 reminds you when they come due. For a truck that racks up towing miles, that is cheap insurance on a truck you plan to keep for a decade.

Enhanced peak recall and 31 gauge layouts

Peak values, such as maximum boost or EGT on the last pull, now display alongside your live gauges and on a recall screen afterward. Edge also added updated graphics, carousel-style screen navigation and 31 built-in layouts with custom colors.

Direct backup camera input

The CTS4 takes a camera on a direct RCA connection with no adapter. If you drive an older Super Duty, 2nd Gen Ram or GMT800 that never had a factory camera, the CTS4 plus a camera turns the screen into a hitch-up tool.

Custom alert messages, USB-C and better Wi-Fi

Both generations warn you with sound and a visual flag when a reading crosses a threshold. The CTS4 lets you write the message, so "EGT high, ease off" means something specific to your truck. A USB-C cable is included for computer updates, and Edge improved Wi-Fi performance for over-the-air updates.

Built-in performance tests

0-60 MPH, eighth-mile and quarter-mile timers are built in, with no extra equipment. Handy for seeing what a new turbo, injectors or tune actually did.

What the CTS4 does for a diesel that tows

A gauge monitor is not a horsepower part, but on a working diesel it is often the first thing we recommend, because the factory cluster hides the numbers that matter when you are loaded. Depending on your truck, the CTS4 can show:

  • Exhaust gas temperature (EGT): the single best indicator of how hard the engine is working on a grade. Many late-model trucks report a factory exhaust temperature, but that sensor usually sits after the turbo. For a true pre-turbo reading, add the Edge EAS Starter Kit with EGT cable (98620, $199.95).
  • Transmission temperature: critical on the 68RFE, 6R140, 10R140, Allison and 10L1000 when towing heavy.
  • Boost and fuel rail pressure: early warnings for a sticking turbo, a weak lift pump or a failing CP3 or CP4.
  • Coolant and oil temperature: the difference between backing off on a long grade and cooking a head gasket.
  • DPF soot level and regen status: on supported diesels, so you can plan around an active regen instead of shutting the truck off in the middle of one.
  • Trouble codes: read and clear supported DTCs on the spot, without a scan tool.

Pair those readings with custom alerts and the CTS4 warns you before a problem turns into a tow bill. That is the case for a monitor on any diesel, modified or not.

Which Edge CTS4 is right for your truck?

CTS4 is a platform, not a single product. Every version uses the same 5.5 inch screen and hardware. What changes is whether, and how, it adds power.

CTS4 version What it does Tuning Best for Price
Insight CTS4
84130-4		 Monitor, gauges, alerts, data logging, DTCs, performance tests None. Upgradable later by internet update to Evolution or Insight+ on supported vehicles Towing, hauling, RVs, stock or already-tuned trucks $599.95
Insight+ CTS4
84140-4		 Everything in Insight plus a preloaded VIN-specific custom tune license Loads approved third-party custom calibrations (tunes sold separately) Modified 1994-2019 Power Stroke, 2003-2012 Cummins, 2001-2016 Duramax $699.95, call to order
Evolution CTS4
85500, 85500-26x, 85800, 8580x		 Monitor plus Edge preloaded tuning flashed through the OBD-II port Preloaded levels (Towing, Economy, Extreme and more by vehicle), custom tune support Owners who want power and monitoring in one device From $799.95
Juice with Attitude CTS4
31500-4 to 31507-4		 Monitor plus an inline Juice module Up to six power levels, switchable on the fly from the screen, with EGT backdown Ram Cummins, 1998.5-2018 $1,499.95
EZ, EZX and Pulsar V3 + Insight CTS4 kits Plug-in power module paired with the Insight CTS4 No ECM flash; dealer-friendly and reversible Late-model trucks where flashing is not an option From $1,149.95
What each CTS4 package costs at Alligator Performance Monitor-only on top, power packages below. Bars show the top of each price range. $0 $300 $600 $900 $1,200 $1,500 $1,800 Juice CTS4 Upgrade Kit (screen only) 83601-4, for current Juice owners $529.95 Insight CTS3 (previous gen) 84130-3 $549.95 Insight CTS4 84130-4 $599.95 Evolution CTS4 Diesel (multi-platform) 85500 $799.95 Evolution CTS4, L5P Duramax 85500-261 / 85500-262 $929.95 - $959.95 EZ + Insight CTS4 kit 30205-4 / 20202-4 $1,149.95 EZX + Insight CTS4 kit 12713-4, 32710-4, 32711-4, 22710-4, 22712-4 $1,299.95 - $1,399.95 Juice with Attitude CTS4 31500-4 through 31507-4 $1,499.95 Pulsar V3 + Insight CTS4 kit 22601-4 / 22602-4 $1,599.95 Alligator Performance prices as of October 26, 2026. Ranges cover the vehicle-specific versions of each kit.

Figure 3. The Insight CTS4 costs $50 more than the CTS3 it replaces. Once you add a power module, the CTS4 kits land between about $1,150 and $1,600 depending on the truck.

Maximum rated gains by CTS4 power package Edge-published top-level gains over stock. Blue = flash or Juice tuning, green = plug-in module. +0 +50 +100 +150 +200 +250 RAM CUMMINS Juice CTS4, 98.5-2002 5.9L (Level 6) 31500-4 and 31501-4 with optional Level 6 Hot Unlock +150 hp / +380 lb-ft Juice CTS4, 2004.5-2007 5.9L (Level 6) 31503-4 and 31504-4 with optional Level 6 Hot Unlock +180 hp / +400 lb-ft EZ + CTS4, 2025-2027 6.7L 30205-4 +110 hp / +280 lb-ft EZX + CTS4, 2019-2024 6.7L 32710-4 +60 hp / +130 lb-ft EZX + CTS4, 2013-2018 6.7L 32711-4 +40 hp / +100 lb-ft GM DURAMAX Evolution CTS4, 2017-2019 L5P 85500-262 +150 hp / +350 lb-ft Pulsar V3 + CTS4, 2020-2023 L5P 22601-4 +136 hp / +291 lb-ft Evolution CTS4, 2020-2023 L5P 85500-261, includes 10-speed tuning +125 hp / +275 lb-ft EZ + CTS4, 2024-2026 L5P 20202-4 +63 hp / +140 lb-ft FORD POWER STROKE EZX + CTS4, 2023-2026 6.7L 12713-4 +60 hp / +140 lb-ft Gains are Edge's ratings at the highest power level and vary by year, engine, transmission and condition. Level 6 on Juice is an optional paid Hot Unlock installed by internet update.

Figure 4. Edge's top-level ratings for the CTS4 power packages we stock for heavy-duty diesels. Plug-in modules (green) trade peak numbers for a no-flash, fully reversible install.

Juice with Attitude CTS4: gains at each power level Edge ratings for the 1998.5-2000 5.9L Cummins (31500-4). Switch levels on the fly from the CTS4 screen. Horsepower gainTorque gain (lb-ft) 0 100 200 300 400 Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 * Level 1: +40 +40 Level 2: +60 +60 Level 3: +80 +80 Level 4: +100 +100 Level 5: +120 +120 Level 6: +150 +150 Level 1: +150 +150 Level 2: +200 +200 Level 3: +250 +250 Level 4: +300 +300 Level 5: +350 +350 Level 6: +380 +380 * Level 6 is an optional Hot Unlock added by internet update. Gains vary by model year and application.

Figure 5. Juice with Attitude is the only CTS4 package that lets you step power up and down on the fly from the monitor itself, with EGT-based backdown to protect the engine.

CTS4 picks for Power Stroke, Cummins and Duramax

Ford F-250 / F-350 Power Stroke

Truck Our pick Why
1994-2022 Power Stroke (7.3L, 6.0L, 6.4L, 6.7L), want power Evolution CTS4 Diesel (85500), $799.95 One part number covers the full range with preloaded tunes and a custom tune license. Edge rates it at up to +175 hp and +470 lb-ft depending on application. Not legal for sale or use in California while CARB testing is pending.
2023-2026 6.7L Power Stroke (F-250 to F-450, SO and HO) EZX + Insight CTS4 (12713-4), $1,299.95 Five power levels up to +60 hp and +140 lb-ft with no ECM flash. Adds no power until coolant reaches temperature.
Any year, monitoring only Insight CTS4 (84130-4), $599.95 Pairs with any existing tune. Add the 98620 EGT kit for a pre-turbo reading.

Ram 2500 / 3500 Cummins

Truck Our pick Why
1998.5-2000 5.9L Juice with Attitude CTS4 (31500-4) Up to +120 hp and +350 lb-ft at Level 5, +150 hp / +380 lb-ft with the optional Level 6 Hot Unlock. EGT probe and fuel pressure sensor included.
2001-2002 5.9L Juice with Attitude CTS4 (31501-4) Same Level 5 and Level 6 ratings as the 98.5-00 kit.
2003-2004 5.9L Juice with Attitude CTS4 (31502-4) Up to +100 hp / +250 lb-ft at Level 5, up to +150 hp / +350 lb-ft at Level 6.
2004.5-2005 5.9L Juice with Attitude CTS4 (31503-4) Up to +100 hp / +250 lb-ft at Level 5, up to +180 hp / +400 lb-ft at Level 6.
2006-2007 5.9L Juice with Attitude CTS4 (31504-4) Same ratings as the 2004.5-2005 kit.
2007.5-2012 6.7L Juice with Attitude CTS4 (31505-4) or Evolution CTS4 (85500) Juice for on-the-fly control (+80 hp / +200 lb-ft at Level 5); Evolution for a single flash device at a lower price.
2013-2018 6.7L EZX + Insight CTS4 (32711-4), $1,399.95 or Juice CTS4 (31507-4) EZX is plug-and-play, up to +40 hp / +100 lb-ft. Juice goes further, up to +100 hp / +300 lb-ft with Level 6.
2019-2024 6.7L EZX + Insight CTS4 (32710-4), $1,399.95 Change power levels from the factory steering wheel buttons, up to +60 hp / +130 lb-ft. Adjustable high idle, tire and gear calibration. A-pillar mount included.
2025-2027 6.7L EZ + Insight CTS4 (30205-4), $1,149.95 Up to +110 hp / +280 lb-ft. Edge says it installs in under 10 minutes with no tools. Vehicle-specific mount included.
Already running Juice (CS2, CTS2 or CTS3) Juice CTS4 Upgrade Kit (83601-4), $529.95 Keeps your existing Juice module and swaps only the screen, mount and cable.

Chevy / GMC Silverado and Sierra Duramax

Truck Our pick Why
2001-2016 Duramax (LB7 through LML) Evolution CTS4 Diesel (85500), $799.95 Preloaded tuning and monitoring in one device. Juice CTS3 owners on 2001-2007 trucks can use the Juice CTS4 Upgrade Kit.
2017-2019 L5P Evolution CTS4 (85500-262), $929.95 or Pulsar V3 + Insight CTS4 (22602-4), $1,599.95 Evolution flashes directly through OBD-II, up to +150 hp / +350 lb-ft. Pulsar V3 skips the flash entirely, up to +132 hp / +293 lb-ft.
2020-2023 L5P Evolution CTS4 (85500-261), $959.95 or Pulsar V3 + Insight CTS4 (22601-4), $1,599.95 Evolution unlocks in-vehicle, includes 10-speed Allison tuning and manual DPF regen, up to +125 hp / +275 lb-ft. Pulsar V3 is the no-ECM-swap option at up to +136 hp / +291 lb-ft.
2024-2026 L5P EZ + Insight CTS4 (20202-4), $1,149.95 Up to +63 hp / +140 lb-ft with seven pedal settings per power level, no flash required.
2020-2025 Silverado / Sierra 1500 3.0L Duramax EZX + Insight CTS4 (22710-4) or (22712-4), $1,299.95 Up to +47 hp / +91 lb-ft on the LM2 and +41 hp / +97 lb-ft on the 2022.5+ LZ0, per Edge.

Running a gas half-ton or HD gas truck too? The Evolution CTS4 Gas (85800), 85802 for 2019-2022 GM 1500 and 85803 for the 2020-2023 GM 6.6L L8T cover those applications.

CTS3 to CTS4 part number cross-reference

If you are searching an old CTS3 part number, here is what replaces it. In most cases the base number stays the same and the suffix changes from -3 to -4.

Product CTS3 part number CTS4 part number CTS4 price
Insight monitor, universal 84130-3 84130-4 $599.95
Insight+ custom tuning device 84140-3 84140-4 $699.95
Evolution Diesel, Ford / GM / Ram 85400-100 and related 85500 $799.95
Evolution, 2020-2023 L5P 85400-261 85500-261 $959.95
Juice with Attitude, 98.5-2000 Cummins 31500-3 31500-4 $1,499.95
Juice with Attitude, other Cummins years 31501-3 to 31507-3 31501-4 to 31507-4 $1,499.95
EZX + Insight, 2023-2026 Ford 6.7L 12713-3 12713-4 $1,299.95
EZX + Insight, 2019+ Ram 6.7L 33710-3 32710-4 $1,399.95
EZX + Insight, GM 1500 3.0L Duramax 22712-3 22712-4 $1,299.95
Pulsar V3 + Insight, 2020-2023 L5P 22601-3 22601-4 $1,599.95

Should you upgrade from a CTS3 to a CTS4?

Edge's own product team compared the jump to going from an iPhone 15 to an iPhone 18. That is a fair way to frame it: the CTS3 still works, and nothing it does today stops working on November 3. The question is whether the improvements are worth the money to you.

Your situation Our advice
Buying your first Edge monitor or tuner Buy CTS4. The $50 difference on the Insight is small, and CTS4 is the platform that will get future updates.
CTS3 owner who tows often and hates the boot time Upgrade. Under 12 seconds vs about 40 is the change you will notice every day.
Older truck with no backup camera Upgrade. The direct RCA input makes adding a camera simple.
Juice with Attitude CS2, CTS2 or CTS3 owner Get the Juice CTS4 Upgrade Kit. Keep your module, upgrade the screen for $529.95.
CTS3 owner using it mostly as an occasional code reader Keep your CTS3. Spend the money on the parts the monitor is telling you about.
CTS3 installed in a dash pod mount Check your mount. EAS accessories carry over, but dash pod mounts are the noted exception.

Installing the Edge CTS4

Video: Edge Products, "How to Install Your Edge CTS4 | Quick 3-Minute Guide."

The Insight CTS4 is a plug-in install that most owners finish in well under an hour, with most of that time spent routing the cable cleanly.

  1. Pick a mount. A-pillar mounts give the cleanest look and keep the screen in your sightline. Your existing CTS3 mount will likely work unless it is a dash pod.
  2. Route the cable. Run it from the mount to the OBD-II port under the dash, tucking it behind trim panels and away from pedals.
  3. Plug in and power up. Connect to the OBD-II port with the key on. The CTS4 identifies the vehicle and the supported parameters.
  4. Update over Wi-Fi. Connect to a network and pull the latest software before you set up layouts. The included USB-C cable is the backup option.
  5. Add accessories. Plug in an EGT probe, pressure sensor or camera through the EAS and RCA inputs.
  6. Build your screens. Choose layouts, set alert thresholds, program the rear buttons and enter Maintenance Minder intervals.

Power packages add steps. Juice and Pulsar modules connect inline at the engine, EZ and EZX modules plug into factory connectors, and Evolution flashes the ECM through the OBD-II port. Follow the instructions for your exact kit.

Edge CTS4 release date and pre-order details

CTS4 launch timeline Oct 20, 2026 CTS4 announced pre-orders open Nov 3, 2026 Official release first units ship Nov 27 - 30, 2026 Black Friday Cyber Monday

Figure 6. Pre-order now and your CTS4 is in line before the first units leave Edge on November 3.

  • Announced and pre-sale opened: October 20, 2026.
  • Official release and first shipments: November 3, 2026. No CTS4 ships before this date.
  • How pre-orders work at Alligator: order now at the listed price and your CTS4 ships as soon as our allocation arrives from Edge. Launch allocations on new Edge platforms tend to go fast, so ordering early is the best way to get one in your hands quickly.
  • Black Friday: the CTS4 launches three weeks ahead of the holiday sales. If you are shopping for a diesel owner, it is the most-asked-about new part of the season.

Edge CTS4 frequently asked questions

When does the Edge CTS4 ship?Edge opened CTS4 pre-sales on October 20, 2026 and set the official release for November 3, 2026. Units cannot ship before that date. Pre-orders placed with Alligator Performance ship as soon as our allocation arrives from Edge.
Does the CTS4 replace the CTS3?Yes. CTS4 is the next generation of Edge's in-cab platform and supersedes the CTS3 across the Insight, Evolution, Juice with Attitude, EZ, EZX and Pulsar packages. Most part numbers simply change their suffix from -3 to -4, for example the Insight CTS3 84130-3 becomes the Insight CTS4 84130-4.
What is the part number for the Edge Insight CTS4?The monitor-only Edge Insight CTS4 is part number 84130-4. The Insight+ CTS4 with a custom tune license is 84140-4, the Evolution CTS4 Diesel is 85500, the Evolution CTS4 Gas is 85800, and Juice with Attitude CTS4 kits run from 31500-4 to 31507-4 depending on your Cummins.
How much faster is the CTS4 than the CTS3?Edge rates the CTS4 at 3.4 times the processing power of the CTS3, with a cold boot of under 12 seconds versus about 40, entry to the monitor screen in about 3 seconds versus 10, and parameter changes in about 10 seconds versus 20. Live data refreshes at 60 frames per second, compared with 10 to 30 on the CTS3.
Does the Insight CTS4 add horsepower?No. The Insight CTS4 is a monitor and diagnostic tool and does not change your engine calibration. If you want power, choose an Evolution CTS4, a Juice with Attitude CTS4, or an EZ, EZX or Pulsar kit that pairs a power module with the Insight CTS4. The Insight can also be upgraded later by internet update to Evolution or Insight+ functionality on supported vehicles.
Will my CTS3 accessories work with the CTS4?Edge confirmed the current Expandable Accessory System (EAS) lineup works with CTS4, so EGT probes, pressure and temperature sensors carry over. Most CTS3 mounts carry over too, with dash pod mounts as the noted exception. Backup cameras now plug straight into a direct RCA input with no adapter.
Do I need an aftermarket EGT probe with the CTS4?Not always. Many late-model trucks report a factory exhaust temperature that the CTS4 can display. Those sensors usually sit downstream of the turbo, so if you tow heavy and want a true pre-turbo reading, add the Edge EAS Starter Kit with EGT cable (98620).
Can the CTS4 read and clear trouble codes and run a DPF regen?It reads and clears supported diagnostic trouble codes on every model. On supported diesel applications it can display DPF soot level and regen status, and Evolution CTS4 versions such as the L5P Duramax kit can trigger a manual regeneration from the screen.
Is the CTS4 worth upgrading to if I already have a CTS3?If your CTS3 does everything you need, it is still a capable monitor. Upgrade if you want the faster boot and gauge response, the bigger 5.5 inch screen, the rear quick-action buttons, Maintenance Minder, or direct backup camera input. Juice with Attitude owners can keep their existing power module and swap only the screen with the Juice CTS4 Upgrade Kit (83601-4).
Is the CTS4 legal in California?The monitor-only Insight CTS4 does not change engine calibration. Tuning versions vary by part number and some are not legal for sale or use in California while CARB testing is pending. Check the compliance note on the specific product page before you order.

Get the next generation on your dash

Every CTS4 package in this guide is in our catalog with fitment already matched to your truck. Not sure whether you need an Insight, an Evolution, a Juice or an EZX kit? Call us at 208-719-7400, tell us what the truck does for a living, and we will point you to the right one.

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