ECU for BMW 3 Series G20 (2019+)

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The ECU and associated components are the brains of your BMW or MINI. If the ECU is faulty or parts such as the housings are compromised, it can lead to a host of issues! Ensure you replace your ECU/DME with the proper components to get your car back up and running properly! All listings below come directly from Genuine BMW or OEM suppliers such as Bosch.
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Motiv ReFlex+ for BMW
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Motiv Motorsports - Corporate Logo
T#:17970629
Part#: RFXF02UI6
In Stock
$ 859.00 USD
Free Shipping on orders $49 and up
The MOTIV ReFlex+ is an Advanced I/O Integration module allowing a level of precise control of auxiliary components. In addition, the ReFlex can incorporate external data into the factory DME/ECU in parallel through optional CANbus integration. Utilizing the CANbus option, multiple digital and analog signals can be used by the DME/ECU for safety, data logging, or adaptive tuning features. It is unique in its ability to function as a separate standalone, as well as a parallel module in conjunction with the DME/ECU. The ReFlex provides the most accurate and precise supplementary sequential fuel injection with the ability to control other advanced features all in one place. It brings a new level of control, function, and versatility to tuning any modern-day vehicle. Preset crank and cam trigger for most modern-day BMW engines, as well as fully configurable triggers to be synched on any vehicle application. Configurable to operate on 4, 5, 6, and 8-cylinder engines. 3 Point MAP sensor calibration table makes it configurable for almost any MAP or TMAP sensor. Sequential Port Injection with the ability to sense individual injector failures on 4 to 8-cylinder engines. Built-in Ethanol Content Analyzer. The Re|Flex firmware and XDFs include ethanol compensation tables to scale properly for varying ethanol % based on real-time input from the sensor. 2x Additional Outputs. These outputs have 12x12 resolution tables for control in TunerPro R/T. These can be configured to run as on/off, digital, frequency (25hz), or PID. Boost Control WGDC Methanol Solenoid Control PWM (for use with valves such as the Aquamist FAV and the ProMeth Pulse Valve) Nitrous Solenoid Control PWM Auxiliary fuel pump relay trigger 2x Inputs Ethanol Content Sensor Fuel Pressure Sensor (0-10bar) Oil Pressure (0-10bar) Coolant Pressure (0-10bar) EGBP/EMAP (0-10bar) CANbus (not required) enabled communication for the transmission and receiving of digital signals for fully DME/ECU integrated control of external modifications. The CANbus communications also allow for data and errors to be transmitted to and from the vehicle's engine control computer in order to add safeguards and implement engine trips and fail safes. Logging via OBDII is still fully functional and is not affected at all by the communication with the Re|Flex. Some of the developments underway include: Error reporting to and from factory ECU for unparalleled safety Output WGDC by converting an EWG signal to a more conventional DC output for controlling standard 3port and 4port boost solenoids for use with external WG’s The ability to datalog non-factory parameters such as ethanol content, additional pressure sensor, PI IDC, and more! These features make the Re|Flex the most powerful and safest supplementary and auxiliary controller on the market. However, this is only the beginning. As flash platforms find the need for more accessories to control, the Re|Flex was designed to be updated easily by the end user in order to add functionality as it is developed.
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Plug And Play ReFlex Plus Install Harness - S58/B58
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Precision Raceworks - Corporate Logo
T#:35761669
Part#: 201-0409
In Stock
$ 213.99

This product was last offered at the strikethrough price on
01-22-2026

$ 199.99 USD
Free Shipping on orders $49 and up
$ 199.99 USD
Free Shipping on orders $49 and up
The **Precision Raceworks S58/B58 Plug-and-Play Install Harness for the Motiv ReFlex+** is certified by Motiv Motorsports and is an essential upgrade for anyone integrating a ReFlex+ into their S58 or B58 vehicle. This Harness replaces only the signal and power sub harness portion of the Motiv Reflex. Standard universal Motiv ReFlex Plus harness required for use of this Plug and Play Harness - ES#4810312 / ES#4810314 This innovative harness eliminates the need for cutting, crimping, or splicing into your factory wiring, providing a straightforward, fully reversible installation. Simply plug it in, and you're ready to go! ### Why Choose the Precision Raceworks Harness? Although the main harness included with the Motiv ReFlex+ is well-designed, its standard sub-harness requires splicing into the factory wiring. Precision Raceworks addresses this by offering a plug-and-play replacement for the sub-harness. This solution retains the high-quality main harness, avoids unnecessary costs, and simplifies installation for seamless performance. ### Key Features of the Precision Raceworks X58 Harness: - **Motiv Motorsports Certified**, ensuring complete compatibility. - **100% Plug-and-Play** for a quick, hassle-free installation. - **Compatible with Tuning Platforms** such as MHD, MHD+, EcuTek, and BM3. - **Premium Build Quality**, manufactured in an ISO 9001-certified facility using automotive-grade wiring. - **Fast Installation**, completed in as little as one hour. - **Reversible Setup**, preserving the factory harness with no permanent modifications. The Precision Raceworks harness is the ideal choice for ReFlex+ users seeking a reliable, cost-effective, and user-friendly solution without altering their vehicle's original wiring.
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TELEMATICS CONTROL UNIT - Genuine BMW
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Genuine BMW - Corporate Logo
T#:632359
Part#: 84109843931
Ships in 1 day
4% off MSRP $ 913.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 879.99 USD
Free Shipping
4% off MSRP
$ 913.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 879.99 USD
Free Shipping

Discover the Turner Motorsport Genuine BMW Telematics Control Unit, a vital component for top-notch connectivity and functionality in your BMW. Carefully designed to seamlessly integrate into your vehicle's system, this unit guarantees optimal performance and compatibility, enhancing the overall driving experience.

  • Genuine BMW Telematics Control Unit for guaranteed quality.
  • Ensures top-notch connectivity for enhanced functionality.
  • Seamlessly integrates into your BMW's system.
  • Optimizes performance and compatibility.
  • Elevates the overall driving experience.

Upgrade your BMW's connectivity with the Turner Motorsport Genuine BMW Telematics Control Unit for a superior and integrated driving experience.

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Motiv ReFlex Lite: Advanced Sequential Injector Controller - Inline-6...
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Motiv Motorsports - Corporate Logo
T#:29234298
Part#: 910.1011
In Stock
$ 479.00 USD
Free Shipping on orders $49 and up
The ReFlex LITE is a simple yet elegant fueling solution for direct injected vehicles that need to add more fuel by installing a port injection system to keep up with their modifications to the vehicle. Using the same precise form of sequential fuel injection as the ReFlex+, the ReFlex LITE brings a more affordable fuel controller without the additional features of the ReFlex+. Sequential port fuel injection for inline-6 engines Firmware and maps are available for multiple vehicles FREE on our website High resolution calibration tables 24x24 cell RPM vs MAP 0-48psi MAP pressure range 250RPM increments up to 8500RPM High resolution datalogging Fault detection status available to monitor in TunerPRO RT Compact in size Universal fitment Simple installation Please Note: The ReFlex LITE does NOT have the ability to analyze and transmit ethanol content to an ECU.
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ReFlex+ Plug-N-Play Harness Kit - Tensility Motorsport
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Motiv Motorsports - Corporate Logo
T#:29201085
Part#: 200.1058
Ships in 4 Business Days
$ 794.00 USD
Free Shipping on orders $49 and up
Tensility Motorsports has developed a plug and play kit for the ReFlex+ that was engineered to meet our high quality standards. TMS has been approved by MOTIV to manufacturer harnesses and they will not void your warranty on MOTIV ReFlex+ products. With attention to detail in the selection of wiring, production standards, and quality assurance, TMS plug and play harnesses ensure a consistent and reliable installation for a hassle-free experience. Each harness kit includes all the necessary components to install and run a ReFlex+ Advanced I/O Controller on the vehicle it was designed for. The harness is divided into a few separate pieces for ease of installation and a very clean finished look. Main Harness: This section of the TMS harness kit includes plug and play connections to the vehicles Cam, Crank, and TMAP sensors, 6 injector runs for port injection, the ethanol content sensor connector, and DTM connections for all of the auxiliary inputs and outputs. CAN+ Power Splitter: A clean over-molded compact harness that provides a plug and play connection to your vehicles Body Domain Controller. This section is where the kit will get power, ground, and connect to the CANbus network. Auxiliary Cable Pack: Four additional cables are included to simplify future expansions such as additional sensors, methanol, NOS, fuel pump relays, etc. These 8 ft. cables plug directly into the unused ReFlex+ harness auxiliary ports Aux Out 1/2/3 and Aux In 4 (PSI).
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Motiv ReFlex+ Control Unit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Motiv Motorsports - Corporate Logo
T#:29101684
Part#: 900.1001
Ships in 6 Business Days
$ 729.00 USD
Free Shipping on orders $49 and up
The motive ReFlex+ Control Unit is an advanced I/O integration module that allows precise control of aftermarket components and sends data to the factory DME (ECU) via CANbus communication, expanding performance tuning capabilities. This control unit allows for precise control of fuel pumps, methanol injection kits, nitrous kits, boost controllers, relay triggers, port injection systems, flex fuel systems, and more. Supporting sequential port injection for up to eight injectors and real-time monitoring of injectors, this unit is a great choice for precise control of fuel delivery to your engine.
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Motiv ReFlex+
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Motiv Motorsports - Corporate Logo
T#:29101668
Part#: 910.1001
Ships in 4 Business Days
$ 849.00 USD
Free Shipping on orders $49 and up
The MOTIV ReFlex+ is an Advanced I/O Integration module allowing a level of precise control of auxiliary components. In addition, the ReFlex can incorporate external data into the factory DME/ECU in parallel through optional CANbus integration. Utilizing the CANbus option, multiple digital and analog signals can be used by the DME/ECU for safety, data logging, or adaptive tuning features. It is unique in its ability to function as a separate standalone, as well as a parallel module in conjunction with the DME/ECU. The ReFlex provides the most accurate and precise supplementary sequential fuel injection with the ability to control other advanced features all in one place. It brings a new level of control, function, and versatility to tuning any modern-day vehicle. Preset crank and cam trigger for most modern-day BMW engines, as well as fully configurable triggers to be synched on any vehicle application. Configurable to operate on 4, 5, 6, and 8-cylinder engines. 3 Point MAP sensor calibration table makes it configurable for almost any MAP or TMAP sensor. Sequential Port Injection with the ability to sense individual injector failures on 4 to 8-cylinder engines. Built-in Ethanol Content Analyzer. The Re|Flex firmware and XDFs include ethanol compensation tables to scale properly for varying ethanol % based on real-time input from the sensor. 2x Additional Outputs. These outputs have 12x12 resolution tables for control in TunerPro R/T. These can be configured to run as on/off, digital, frequency (25hz), or PID. Boost Control WGDC Methanol Solenoid Control PWM (for use with valves such as the Aquamist FAV and the ProMeth Pulse Valve) Nitrous Solenoid Control PWM Auxiliary fuel pump relay trigger 2x Inputs Ethanol Content Sensor Fuel Pressure Sensor (0-10bar) Oil Pressure (0-10bar) Coolant Pressure (0-10bar) EGBP/EMAP (0-10bar) CANbus (not required) enabled communication for the transmission and receiving of digital signals for fully DME/ECU integrated control of external modifications. The CANbus communications also allow for data and errors to be transmitted to and from the vehicle's engine control computer in order to add safeguards and implement engine trips and fail safes. Logging via OBDII is still fully functional and is not affected at all by the communication with the Re|Flex. Some of the developments underway include: Error reporting to and from factory ECU for unparalleled safety Output WGDC by converting an EWG signal to a more conventional DC output for controlling standard 3port and 4port boost solenoids for use with external WG’s The ability to datalog non-factory parameters such as ethanol content, additional pressure sensor, PI IDC, and more! These features make the Re|Flex the most powerful and safest supplementary and auxiliary controller on the market. However, this is only the beginning. As flash platforms find the need for more accessories to control, the Re|Flex was designed to be updated easily by the end user in order to add functionality as it is developed.
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ReFlex+ Install Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Motiv Motorsports - Corporate Logo
T#:29267513
Part#: 400.1001
In Stock
$ 15.00 USD
Free Shipping on orders $49 and up

ReFlex+ Plug-N-Play Harness Kit - Visconti Tuning
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Motiv Motorsports - Corporate Logo
T#:29201087
Part#: 200.1103
Ships in 4 Business Days
$ 795.00

This product was last offered at the strikethrough price on
01-05-2026

$ 615.00 USD
Free Shipping on orders $49 and up
$ 615.00 USD
Free Shipping on orders $49 and up
Visconti Tuning teamed up with MOTIV as the first company to bring a plug-and-play harness to the community. After years of success and some of the fastest Supras and BMWs in the world using the harness, Visconti Tuning has improved upon an already fantastic offering.
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Genuine BMW Basic Cotrol Unit DME 8CT0-NOX
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:49543753
Part#: 12145B32771
Ships in 2 Business Days
New Item
5% off MSRP $ 2,409.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,279.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 2,409.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,279.99 USD
Free Shipping on orders $49 and up
Replaces faulty or broken cotrol unit
ReFlex Lite: Advanced Sequential Injector Controller - Inline-4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Motiv Motorsports - Corporate Logo
T#:29234292
Part#: 910.1010
Back Ordered
$ 469.00 USD
Free Shipping on orders $49 and up
The ReFlex LITE is a simple yet elegant fueling solution for direct injected vehicles that need to add more fuel by installing a port injection system to keep up with their modifications to the vehicle. Using the same precise form of sequential fuel injection as the ReFlex+, the ReFlex LITE brings a more affordable fuel controller without the additional features of the ReFlex+. Sequential port fuel injection for inline-4 engines Firmware and maps are available for multiple vehicles FREE on our website High resolution calibration tables 24x24 cell RPM vs MAP 0-48psi MAP pressure range 250RPM increments up to 8500RPM High resolution datalogging Fault detection status available to monitor in TunerPRO RT Compact in size Universal fitment Simple installation Please Note: The ReFlex LITE does NOT have the ability to analyze and transmit ethanol content to an ECU.
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