ALL IN ONE - BMW™ KIT
Upgrade your fuel system with the TMS ReFlex+™ Flex Fuel & Harness Kit — a complete plug-and-play solution built for advanced tuning, sensor integration, and full Flex Fuel compatibility. Designed for seamless installation on BMW™ B58 and G8X™ platforms, this kit includes everything needed for a clean, reversible, and sensor-rich setup.
Includes
TMS ReFlex™ Plug-and-Play Harness
Connects to port injection, ethanol sensor, low pressure fuel sensor, charge pipe, intake CAM, and crank sensor — all without cutting or splicing.
CAN + Power Splitter
Routes power and CANBus to the ReFlex™ harness via the Body Domain Controller in the passenger footwell, behind the kick-plate.
Auxiliary Cable Pack
Includes four 8-foot cables that plug directly into ReFlex™ auxiliary ports (Aux Out 1/2/3, Aux In 4). Ideal for future upgrades such as:
- Methanol injection
- Nitrous
- Additional sensors
TMS Flex Fuel Kit (with Filter and Ethanol Sensor)
Plug-and-play flex fuel kit replaces the OEM fuel line with a TMS-designed Fuel Line Assembly and Filter. Integrates seamlessly using a content analyzer and ethanol sensor — no wire splicing or tapping required. Fully reversible to stock.
Motiv ReFlex Plus™ Controller
Ships blank — no preloaded software.
ReFlex Plus™ Mounting Bracket
Installs in the access compartment next to the engine bay on the passenger side to secure the ReFlex™ controller.
Motiv™ 0–10 Bar Pressure Sensor
Provides high-resolution fuel pressure data.
Fuel Pressure Sensor Fitting
Adapter fitting for clean, leak-free integration with the TMS harness.
Compatible Car Models
B58 GEN 1 Models:
- 2015–2019 BMW™ 340i (F30 / F31 / F34)
- 2016–2019 BMW™ 440i (F32 / F33 / F36)
- 2016–2021 BMW™ M240i (F22 / F23)
B58 GEN 2 Models:
- 2018–Present BMW™ 340i (G20)
- 2021–Present BMW™ 240i (G22)
- 2022–Present BMW™ 440i (G42)
- 2018–Present BMW™ X3M40i (G01)
G8X Models:
- 2021–Present BMW™ M3 (G80)
- 2021–Present BMW™ M4 Coupe (G82)
- 2021–Present BMW™ M4 Convertible (G83)
- 2023 BMW™ M2 (G87)
Click HERE for installation instructions.
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Product information
These commodities, technology, or software were exported from the United States in accordance with the Export Administration Regulations. Diversion contrary to U.S. law is prohibited.
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