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In-Cabin Tuners And Monitors

  • Monitors

    Monitor your vehicles performance without tuning the vehicle. This is the best way to see how your car is performing. View key parameters such as EGT, Cycles, Trans temp, Boost, RMP & dozens more. You're also able to read or clear DTC check engine codes. An In-Cabin monitor will pair perfectly with other performance upgrades!

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  • Tuners

    Holley’s collection of Tuners includes handheld, in-cabin, and inline systems from leading brands like DiabloSport, Edge, Superchips, and Accel. These tools deliver instant horsepower and torque gains through precision-engineered calibrations designed for gas, diesel, and hybrid vehicles. Whether you want more towing power, throttle response, or track-day performance, these tuners put complete control of your engine management system right at your fingertips.

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Items 1 - 56 of 56 Items
  • DiabloSport Trinity 2 EX Platinum
    DiabloSport
    DiabloSport Trinity 2 EX Platinum 2003-2014 Chrysler/Dodge/Jeep/RAM Vehicles - Custom Tuning
    Part# 9345-D
    (51)
    Free Shipping

    In Stock

    $770.95
  • DiabloSport Trinity 2 EX Platinum - 99-16 GM cars and trucks
    DiabloSport
    DiabloSport Trinity 2 EX Platinum - 99-16 GM cars and trucks 1999-2016 GM Vehicles - Gas - Custom Tuning
    Part# 9245
    (45)
    Free Shipping

    In Stock

    $770.95
  • Insight CTS3
    Edge
    Insight CTS3 Insight CTS3 is the industry’s #1 preferred display for trucks, offering premium touchscreen monitoring, advanced diagnostics and customizable gauges. Perfect for towing, it delivers real-time data for peace of mind, safety, and efficiency.
    Part# 84130-3
    Free Shipping

    In Stock

    $549.95
  • Trinity 2 GM E90/T93 Unlock and Tune Kit
    DiabloSport
    Trinity 2 GM E90/T93 Unlock and Tune Kit Unlock AND Tune your 2019-2022 5.3L or 6.2L powered Silverado or Sierra, in your driveway with Trinity 2!
    Part# 9225-R
    Free Shipping

    Est. Ship Date: Coming Soon

    $1,049.95
  • DiabloSport Trinity 2 EX Platinum - 17-18 GM vehicles
    DiabloSport
    DiabloSport Trinity 2 EX Platinum - 17-18 GM vehicles 2017-Present GM Vehicles - 50 State Legal
    Part# 9246
    (4)
    Free Shipping

    In Stock

    $813.95
  • Superchips TrailDash 3
    Superchips
    Superchips TrailDash 3 2007-2014 Jeep Wrangler
    Part# 42050-3
    (10)
    Free Shipping

    Est. Ship Date: Coming Soon

    $599.95
  • DiabloSport Trinity 2 EX Platinum for Jeep
    DiabloSport
    DiabloSport Trinity 2 EX Platinum for Jeep 2005-2014 Jeep Vehicles - Custom Tuning
    Part# 9445-D
    (5)
    Free Shipping

    In Stock

    $749.95
  • Evolution CTS3 for Duramax
    Edge
    Evolution CTS3 for Duramax The Evolution CTS3 for GM Duramax delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85400-200
    Free Shipping

    Est. Ship Date: Coming Soon

    $799.95
  • DiabloSport Trinity 2 EX Platinum - Ford Vehicles
    DiabloSport
    DiabloSport Trinity 2 EX Platinum - Ford Vehicles 1996-2023 Ford Vehicles - Gas - Custom Tuning
    Part# 9145
    (9)
    Free Shipping

    In Stock

    $770.95
  • Edge Evolution CTS3
    Edge
    Edge Evolution CTS3 1999-2016 GM Vehicles - Gas
    Part# 85450-250
    Free Shipping

    In Stock

    $799.95
  • Superchips TrailDash 3
    Superchips
    Superchips TrailDash 3 2015-2018 Jeep Wrangler
    Part# 42051-3
    (8)
    Free Shipping

    In Stock

    $749.95
  • Evolution CTS3 2019-2022 GM 1500
    Edge
    Evolution CTS3 2019-2022 GM 1500 2019-2022 GM 1500 with 5.3L/6.2L - E90/T93 Unlocking and flashing
    Part# 85452-K
    Free Shipping

    Est. Ship Date: Coming Soon

    $999.95
  • Superchips Dashpaq Plus
    Superchips
    Superchips Dashpaq Plus 1999-2019 Ford Powerstroke Diesel
    Part# 10501
    (2)
    Free Shipping

    In Stock

    $813.95
  • Edge Evolution CTS3
    Edge
    Edge Evolution CTS3 1999-2020 Ford Vehicles - Gas
    Part# 85450-150
    Free Shipping

    In Stock

    $813.95
  • Superchips Dashpaq+
    Superchips
    Superchips Dashpaq+ 1999-2016 GM Vehicles - Gas
    Part# 20601
    (10)
    Free Shipping

    In Stock

    $813.95
  • Evolution CTS3 2020-2023 GM 2500/3500 6.6L Gas
    Edge
    Evolution CTS3 2020-2023 GM 2500/3500 6.6L Gas 2020-2023 GM 2500/3500 6.6L Gas - Unlocking and flashing
    Part# 85453-K
    Free Shipping

    In Stock

    $999.95
  • Trinity 2 GM 6.6L L8T Gas Unlock and Tune Kit
    DiabloSport
    Trinity 2 GM 6.6L L8T Gas Unlock and Tune Kit Unlock AND Tune your 2020-2023 6.6L L8T powered Silverado or Sierra, in your driveway with Trinity 2!
    Part# 9266-R
    Free Shipping

    In Stock

    $1,049.95
  • DiabloSport Trinity 2 EX - 50 State legal Dodge/Ram
    DiabloSport
    DiabloSport Trinity 2 EX - 50 State legal Dodge/Ram RAM/Dodge - Gas - 50 State Legal
    Part# 9300
    (5)
    Free Shipping

    In Stock

    $770.95
  • Insight CTS3 with Range DFM Module Kit
    Edge
    Insight CTS3 with Range DFM Module Kit Insight CTS3 with Range DFM Module
    Part# 84130-DFM
    Free Shipping

    In Stock

    $749.95
  • DiabloSport Trinity 2 MX Monitor
    DiabloSport
    DiabloSport Trinity 2 MX Monitor GM/Ford/Dodge Vehicles - Monitor Only
    Part# 9050
    (1)
    Free Shipping

    In Stock

    $726.95
  • Edge Evolution 2017-2019 GM Gas CTS3
    Edge
    Edge Evolution 2017-2019 GM Gas CTS3 2017-2019 Chevrolet/GMC/Cadillac/ Gas Vehicles
    Part# 85452-252
    Free Shipping

    In Stock

    $868.95
  • Superchips TrailDash 3
    Superchips
    Superchips TrailDash 3 2020-2022 Jeep Gladiator
    Part# 42051-JT-3
    (1)
    Free Shipping

    In Stock

    $749.95
  • Superchips TrailDash 3
    Superchips
    Superchips TrailDash 3 2018-2023 Jeep Wrangler 3.6/2.0, 2021-2026 6.4, 2020-2022 Gladiator 3.6 with PCM swap.
    Part# 42051-JL-3
    (5)
    Free Shipping

    In Stock

    $749.95
  • Evolution CTS3 for Power Stroke
    Edge
    Evolution CTS3 for Power Stroke Evolution CTS3 for Ford Power Stroke delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85400-100
    Free Shipping

    Est. Ship Date: We’re actively building and shipping daily, and your order will ship as soon as inventory becomes available.

    $799.95
  • DiabloSport Trinity 2 EX
    DiabloSport
    DiabloSport Trinity 2 EX 2005-2014 Jeep Vehicles - 50 State Legal
    Part# 9400
    Free Shipping

    In Stock

    $749.95
  • Superchips Dashpaq Plus
    Superchips
    Superchips Dashpaq Plus 2001-2016 Chevrolet Silverado/GMC Sierra 2500/3500 - LB7/LLY/LBZ/LMM/ Duramax Diesel
    Part# 20501
    Free Shipping

    In Stock

    $868.95
  • Superchips Dashpaq+
    Superchips
    Superchips Dashpaq+ 2017-2023 GM Vehicles - Gas
    Part# 20617
    (1)
    Free Shipping

    In Stock

    $868.95
  • Edge Evolution CTS3
    Edge
    Edge Evolution CTS3 Chrysler/Dodge/Jeep/Ram Vehicles - 1999-2014 Gas
    Part# 85450-350
    Free Shipping

    In Stock

    $799.95
  • Evolution CTS3 for Cummins
    Edge
    Evolution CTS3 for Cummins The Evolution CTS3 for Dodge Ram Cummins delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85400-300
    Free Shipping

    In Stock

    $799.95
  • DiabloSport Trinity 2 EX - 50 State Legal GM
    DiabloSport
    DiabloSport Trinity 2 EX - 50 State Legal GM GM - Gas - 50 State Legal
    Part# 9200
    (8)
    Free Shipping

    In Stock

    $770.95
  • Evolution CTS3 - 50 State Legal
    Edge
    Evolution CTS3 - 50 State Legal The Evolution CTS3 for Ford Powerstroke delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85401-101
    Free Shipping

    In Stock

    $849.95
  • Superchips Dashpaq+
    Superchips
    Superchips Dashpaq+ 1996-2022 Ford Vehicles - Gas
    Part# 10601
    (5)
    Free Shipping

    In Stock

    $799.95
  • Evolution CTS3 - 50 State Legal
    Edge
    Evolution CTS3 - 50 State Legal The Evolution CTS3 for Dodge Ram Cummins delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85401-301
    Free Shipping

    In Stock

    $849.95
  • Evolution CTS3 with Locksmith
    Edge
    Evolution CTS3 with Locksmith The Evolution CTS3 for GM Duramax delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85400-262
    Free Shipping

    In Stock

    $922.95
  • Insight+ Custom Tuning Device
    Edge
    Insight+ Custom Tuning Device Insight+ is a premium display with real-time monitoring and the ability to read and write custom tuning. It delivers exceptional control, performance, and diagnostic precision for drivers seeking custom calibration and advanced data.
    Part# 84140
    Free Shipping

    In Stock

    $649.95
  • Superchips Dashpaq+ Refurbished
    Superchips
    Superchips Dashpaq+ Refurbished 1996-2022 Ford Vehicles - Gas
    Part# FR10601
    Free Shipping
    $580.95
  • Trinity 2 MX for Ford EV
    DiabloSport
    Trinity 2 MX for Ford EV Trinity 2 Monitor for Mach-E and Lightning
    Part# 9050-FEV
    (2)
    Free Shipping

    In Stock

    $549.95
  • Superchips Dashpaq Plus
    Superchips
    Superchips Dashpaq Plus 2003-2012 Dodge/Ram 2500/3500 - 5.9/6.7L Cummins Diesel
    Part# 30501
    Free Shipping

    In Stock

    $999.95
  • Superchips Dashpaq+
    Superchips
    Superchips Dashpaq+ 2003-2014 Dodge Vehicles - Gas
    Part# 30601
    (5)
    Free Shipping

    In Stock

    $922.95
  • Insight CTS4
    Edge
    Insight CTS4 Insight CTS4 is the next generation of digital vehicle monitoring, giving truck owners and performance enthusiasts a faster, clearer, and more powerful way to see what’s happening under the hood.
    Part# 84130-4
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $599.95
  • Insight+ Kit for 2020-2023 L5P Duramax
    Edge
    Insight+ Kit for 2020-2023 L5P Duramax Insight+ is a premium display offering real-time monitoring and the ability to read and write custom tuning. It delivers exceptional control, performance, and diagnostic precision for drivers seeking custom calibration and advanced data.
    Part# 84140-1
    Free Shipping

    In Stock

    $1,049.95
  • Insight+ Kit for 2017-2019 L5P Duramax
    Edge
    Insight+ Kit for 2017-2019 L5P Duramax Insight+ is a premium display offering real-time monitoring and the ability to read and write custom tuning. It delivers exceptional control, performance, and diagnostic precision for drivers seeking custom calibration and advanced data.
    Part# 84140-2
    Free Shipping

    In Stock

    $868.95
  • Insight+ Kit for 2020-2021 Ford 6.7L Power Stroke
    Edge
    Insight+ Kit for 2020-2021 Ford 6.7L Power Stroke Insight+ is a premium display offering real-time monitoring and the ability to read and write custom tuning. It delivers exceptional control, performance, and diagnostic precision for drivers seeking custom calibration and advanced data.
    Part# 84140-3
    Free Shipping

    In Stock

    $849.95
  • Edge Insight+ CTS4
    Edge
    Edge Insight+ CTS4 Edge Insight+ with the all-new CTS4 platform delivers smarter, faster diesel monitoring and custom tuning capability with real-time gauges, diagnostics, data logging, performance testing, and more control.
    Part# 84140-4
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $699.95
  • Evolution CTS3 with Locksmith
    Edge
    Evolution CTS3 with Locksmith The Evolution CTS3 for Ford Power Stroke delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85400-101
    Free Shipping

    Est. Ship Date: Coming Soon

    $999.95
  • Evolution CTS3 with Locksmith
    Edge
    Evolution CTS3 with Locksmith The Evolution CTS3 for GM Duramax delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85400-261
    Free Shipping

    In Stock

    $1,149.95
  • Evolution CTS3 - 50 State Legal
    Edge
    Evolution CTS3 - 50 State Legal The Evolution CTS3 for GM Duramax delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85401-201
    Free Shipping

    In Stock

    $849.95
  • Edge Evolution CTS4 Diesel
    Edge
    Edge Evolution CTS4 Diesel Upgrade your Ford, GM, Ram diesel truck with the Edge Evolution CTS4. Monitor vital engine data, unlock proven performance tuning, and customize settings through a large, high-resolution touchscreen. All in one powerful device.
    Part# 85500
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $799.95
  • Evolution CTS4 2020-2023 GM L5P Duramax
    Edge
    Evolution CTS4 2020-2023 GM L5P Duramax The Evolution CTS4 for GM L5P Duramax delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85500-261
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $959.95
  • Evolution CTS4 17-19 GM L5P Diesel with Locksmith
    Edge
    Evolution CTS4 17-19 GM L5P Diesel with Locksmith The Evolution CTS4 for GM L5P Duramax delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade.
    Part# 85500-262
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $929.95
  • Edge Evolution CTS4 Gas
    Edge
    Edge Evolution CTS4 Gas Upgrade your Ford, GM, Ram gas truck with the Edge Evolution CTS4. Monitor vital engine data, unlock proven performance tuning, and customize settings through a large, high-resolution touchscreen. All in one powerful device.
    Part# 85800
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $799.95
  • Evolution CTS4 2019-2022 GM 1500
    Edge
    Evolution CTS4 2019-2022 GM 1500 Edge Evolution CTS4 delivers powerful tuning and advanced monitoring for 2019–2022 Non-Refresh Silverado/Sierra 1500 5.3L & 6.2L trucks, with octane-specific tunes, improved throttle response, and optimized shifting.
    Part# 85802
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $959.95
  • Evolution CTS4 2020-2023 GM 2500 6.6L Gas
    Edge
    Evolution CTS4 2020-2023 GM 2500 6.6L Gas Edge Evolution CTS4 delivers powerful tuning and advanced monitoring for 20–23 Chevy Silverado/GMC Sierra 2500HD & 3500HD trucks with the 6.6L V8 gas engine, with octane-specific tunes, improved throttle response, and optimized shifting.
    Part# 85803
    Free Shipping

    Pre-Order

    Est. Ship Date: November 3, 2026

    $959.95
  • DiabloSport Trinity 2 EX -50 State Legal Ford
    DiabloSport
    DiabloSport Trinity 2 EX -50 State Legal Ford Ford - Gas - 50 State Legal
    Part# 9100
    (5)
    Free Shipping

    In Stock

    $749.95
  • Factory Refurbished Insight CTS3
    Edge
    Factory Refurbished Insight CTS3 Insight CTS3 is the industry’s #1 preferred display for trucks, offering premium touchscreen monitoring, advanced diagnostics and customizable gauges. Perfect for towing, it delivers real-time data for peace of mind, safety, and efficiency.
    Part# FR84130-3
    Free Shipping
    $429.95
  • DiabloSport Trinity 2 EX - Refurbished
    DiabloSport
    DiabloSport Trinity 2 EX - Refurbished 1999-2016 GM, 2005-2014 Dodge, 1996-2022 Ford Mustang, 1999-2019 Ford F150
    Part# FR9900
    Free Shipping
    $562.95
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In-Cabin Tuners And Monitors

In-Cabin Tuners and Monitors from DiabloSport, Edge, and Superchips bring real-time power management and performance data directly to your dash. These advanced devices provide live monitoring, data logging, and on-the-fly tuning in a sleek touchscreen interface. Perfect for both street and off-road enthusiasts, in-cabin systems allow you to view critical engine parameters, adjust performance modes, and unlock horsepower—all without popping the hood.