Description
🏎️ BMW E36 M3 S50B32 EURO Standalone ECU MSS50 PnP Ecu
RM Primis Plug & Play ECU for BMW E36 M3 S50B32 Euro
🔧 Product Overview
Transform your BMW E36 M3 S50B32 EURO into a precision-tuned performance machine with the RM Primis Standalone ECU — a true plug-and-play ECU upgrade that replaces the factory Bosch 88-pin ECU.
Designed specifically for the legendary S50B32 engine, it delivers factory reliability with motorsport-level control and customization. Perfect for street builds, track cars, or engine-swapped projects.
The RM Primis ECU gives you complete control over fuel, ignition, VANOS, and CAN Bus systems — all through the intuitive RM-Tuner software.
⚙️ Key Features
- Direct Plug & Play: Pre-wired harness adapter and ECU cable make installation simple and reversible.
- Full CAN Bus Integration: Communicates with vehicle modules, including support for ZF 5HP automatic (GS20 TCU).
- VANOS Control: Full closed/open loop control for dual VANOS on the S50B32 with 2 solenoids per cam, direct control without modifications needed.
- Advanced Tuning & Datalogging: Real-time map editing, live logging, and safety protections using RM-Tuner.
- ZF 8HP Compatibility: Native CAN-Bus support for ZF 8HP transmission control — no extra module needed. [Learn more HERE].
🚀 Performance & Motorsport Features
- Built-in 400 kPa MAP Sensor – ideal for turbo and supercharged setups.
- Drive-by-Wire Ready – optional throttle integration for sharp, responsive control.
- Boost Control – open/closed loop PID boost control with dual tables.
- Launch Control / Antilag / Boost by Gear – configurable for maximum acceleration.
- Idle & A/C Control – smooth idle management and full A/C compressor integration.
- Wideband O₂ Support – compatible with Bosch LSU 4.9 and 4.2 sensors (NTK under validation).
📊 Technical Specifications
| Function | Channels / Description |
|---|---|
| IGN Outputs | 6 (up to 12 cylinders supported) |
| INJ Outputs | 6 (up to 12 cylinders supported) |
| GP Low Side Outputs | 6 |
| GP High Side Outputs | 4 |
| VR Sensor Inputs | 3 (application specific) |
| Digital Inputs | 3 |
| Knock Inputs | 2 |
| Electronic Throttle | 1 |
| GP Analog Inputs | 8 |
| Dedicated IAT/CLT/TPS | Yes |
| CAN Bus | Yes |
| Programmable I/O | Yes (multiple logic rules) |
🧠 Advanced Engine Control
- Sequential Fuel & Ignition: Up to 6-cylinder full sequential, or 8-cylinder batch/wasted spark.
- Custom Logic Rules: Configure fan control, safety limits, or boost switching directly from RM-Tuner.
- Comprehensive Documentation: Full guides, wiring info, and setup walkthroughs in the Primis Help Center.
⚡ Why Choose RM Primis
- Developed for the BMW E36 M3 S50B32 EURO — full VANOS and CAN Bus support.
- True Plug-and-Play — no rewiring required, simply connect and tune.
- Free RM-Tuner Software with unlimited data logging and calibration tools.
- Motorsport-grade reliability built from automotive-rated components.
- Backed by the RM Racing Electronics team with technical support and setup assistance.
🔩 Compatibility
- Fits BMW E36 M3 models with the MSS50 88-pin ECU.
- Can run without CAM sensor (non-sequential operation supported).
- Compatible with factory sensors and actuators.
🏁 Bring Your BMW E36 M3 S50B32 to Life
Experience sharper throttle response, cleaner VANOS operation, and total tuning freedom.
The RM Primis Standalone ECU delivers OEM reliability with race-level performance control — built for enthusiasts, tuners, and professionals who want more from their E36 M3.
