Reflex+ FULL KIT BMW N54/N55/S55 kit (inc. injectors)

All included – Reflex Plus kit for BMW N54, N55 or S55 engines with everything you need for Port Injection control

MOTIV ReFlex+ is a versatile controller that allows precise and flexible control of auxiliary systems such as WMI water meth injection, intake manifold port injectors, fuel pumps, relays and much more. When your build escalates far enough, Reflex Plus becomes the natural choice. The unit has become especially popular among BMW tuners for N54, N55, S55 and B58 engines.

We have bundled the most common components into one complete package. In addition, you will only need either a Port Injection spacer plate between the intake manifold or an intake manifold that is already prepared for injectors. See our selection including F Essentials and Wagner products.

What the package includes:

1100cc Bosch EV14 injectors, matched set
Genuine and flow tested Bosch EV14 injectors with 34mm O-O length and 1060cc output at 3 bar. USCAR connector.

0–10 bar pressure sensor for the Motiv system
Most tuners require a pressure sensor to be installed before tuning the Reflex+ system. The sensor is typically installed in the fuel line to allow safety strategies, for example in case of fuel pressure drop. It can also be used to measure other fluid pressures such as oil pressure.

Convenient quick connector for pressure sensor installation for 5/16″ line
Quick connector with 1/8 branch port. The adapter snaps into the factory style fuel line connectors. Easy and clean installation for the pressure sensor.

Ethanol sensor kit for BMW 54/55 series (optional)
If you want to use an ethanol sensor and route its signal to your vehicle’s CAN bus for ECU use via Reflex, this kit allows easy installation of the included Continental sensor into the fuel line.

Ethanol sensor wiring harness (optional)
Cable between the Reflex Plus unit and the ethanol sensor.

MOTIV Reflex Plus system

• Advanced controller for PI, so called Port Injection auxiliary injector systems
• Provides four AUX outputs and four AUX inputs
• Can be equipped with its own ethanol content sensor and pressure sensors
• Can be I/O integrated into the CAN bus and add additional channels for ECU use
• Includes an analog output for BMW N54 MHD Flexfuel integration

Auxiliary injector control, PI Port Injection
In modern engines, direct injection often becomes a bottleneck when power levels increase significantly. More fuel delivery is required and fuel octane must be increased by various means. At its simplest, Reflex Plus is an effective way to create intelligent and adaptive control for auxiliary injectors. You can control injectors using different strategies such as batch, semi batch or sequential.

The system comes with a universal main wiring harness and clear instructions on where to connect it. Convenient Quick Connect tap connectors are included.

Reflex Plus is suitable for engines up to 8 cylinders. A professional tuner can calibrate it to work with almost any engine type by correctly defining camshaft, crankshaft and MAP sensor signals. The unit is supplied with universal base maps and limited vehicle specific base calibrations.

Optional signal outputs
The controller output ports can be used as switches, digital or analog outputs, or frequency or PWM channels to control additional devices such as:

• Water meth injection, WMI
• Nitrous systems
• Standalone boost controllers
• Fuel pumps
• Relays
• N54 Flexfuel signal

Optional signal inputs and CAN bus integration
With Reflex Plus you can also add more data to the CAN bus. One channel is dedicated to an ethanol sensor, allowing ethanol content data to be sent typically to the vehicle ECU for adaptive tuning. Other common applications include:

• Fuel pressure
• Exhaust pressure, turbine backpressure
• Oil pressure
• Other fluid pressures
• Crankcase pressure

This integration is supported on several popular tuning platforms, for example BMW MHD Flash and BM3.

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Downloadable PDF files

-> Motiv Motorsport, Reflex Plus installation instructions
-> Reflex Plus input signals, wiring instructions
-> Reflex Plus output signals, wiring instructions
-> Reflex Plus BMW N54 Flexfuel wiring

Also see:
-> Reflex+ downloadable base maps and instructions for BMW engines (Online folder)
-> Firmware files, loader and update instructions (Online folder)

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Watch an example video of Motiv integration into MHD datalogging