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DET3 EcuMasters Digital Engine Tuner 3

Not every customer wants to replace their proven factory ECU, nor do they have to. With the ECU Master Digital Tuner III, you maintain your factory computer and install this as a true piggy-back device. Meaning your factory computer controls all the entire car as usual, EXCEPT you now gain control over all the parameters below to off true tuning in an easy to use graphical user interface.

This unit comes with a built-in 4 bar map sensor so you have the ultimate piggy back tuning device. Easy to use, easy to set-up with an amazing amount of engine control.

The ECU Master is produced in Europe and is sweeping the Continent by storm. For Supra owners familiar with the HKS VPC/GCC alphabet soup combination that powered many Supra's to 800HP, this replaces that type of device and then blows it out of the water with finite control of not only fuel curves, but also ignition!!

Features that boosted car owners love on this unit, "launch control", "boost control" "MAF to MAP auto conversion"

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Universal Fit
  • $395

DIGITAL ECU TUNER 3 is the most popular piggyback tuning device in Europe and has now hit U.S. shores. Despite its small size, the DET3 is an extremely capable piggyback tuning device. The DET3 allows for the removal of the airflow meter on most applications, and ignition timing can be monitored and adjusted via 16x16 tables. The parametric output channels can be configured to control  boost with the use of a boost control solenoid, nitrous activation, water or methanol injection control, etc. Launch control and map switching are also among the advanced features available to the end user. In "Fuel Implant" mode, the DET3 operates much like a standalone ECU, calculating fuel requirements based on RPM, IAT, CLT, TPS and even O2 feedback, and can drive up to 4 injectors directly (in normal installations the injectors are not controlled directly, so the DET3 can be used with any number of injectors, you are not limited to 4)


  • Four 16x16 tables (fuel map,two PWM tables, ignition table)
  • 8 Correction tables, 16x1
  • 2 Independent switchable map sets
  • Built-in 4 bar MAP sensor
  • Capable of modifying one analog signal
  • 4 Analog inputs
  • Internal datalogging with built-in flash memory
  • Battery voltage monitoring
  • Supports frequency output air flow meters (for signal modification) 17Hz-4kHz
  • Supports VR and Hall effect crank sensors as well as ignition module signals.
  • Supports both single ended and differential signals
  • Supports all common crank trigger patterns: 60-2, 36-2, 36-1, Multitooth, Ignition Modules and more
  • Parametric output can be configured for boost control
  • Output for 4 high impedance injectors in batch fire (only used in "Fuel Implant" mode, not when installed as a piggyback
  • ON/OFF parametric output
  • Automatic conversion of MAP to MAF with the use of the learning algorithm
  • Launch control
  • Road dyno
  • Supports individual calibration of each analog sensor – device displays values with correct units
  • Free firmware updates – new crank trigger patterns and new functionality
  • Fuel Implant mode – drive injectors in standalone mode (batch fire)
  • USB communication, cable included
  • 24 month warranty


  • Windows 2000, XP, Vista, Windows 7, Windows 8
  • Screen resolution of at least 1024x768 16bit
  • CPU with a clock of at least 600MHz
  • USB port


  • Digital ECU Tuner 3
  • USB cable
  • Connector
  • Terminals
  • Card with link to software and driver downloads (available for free from our site at any time)
  • Set of resistors and diodes (used in some applications)
    • SKU
    • Weight
      1 lbs
  • Crown JZS155 Royal Saloon PnP Adapter
    No, Yes

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.

IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

  • Fitment Type
    Universal Fit

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