PSR Parts - External ECU Remap Tuning - BMW G05 X5 50E PSR-ECU-BMW-G05X50E

Maximise the performance of your BMW G05 X5 50E with the PSR Parts External ECU Remap Tuning, delivering 550HP and 810Nm of torque. This advanced tuning solution enhances the power and drivability of your vehicle without altering the original ECU software, offering a safe, reversible, and engine-specific performance upgrade.

Unlike standard “PowerBox” units, the PSR External ECU is a sophisticated engine management system. It monitors multiple engine signals—including turbo boost, RPM, and load via CANBUS—to calculate optimal torque and power output. This ensures smooth, responsive, and reliable performance under all driving conditions while maintaining engine and hybrid system safety.

Key Features & Benefits

• Advanced Engine Management: Monitors turbo pressure, RPM, and engine load for precise torque calculation

• Dynamic Fuel & Electric Boost: Optimises fuel injection and electric motor contribution for maximum low- and mid-range torque

• Turbo Boost Control: Adjusts turbo spool-up timing and regulates boost pressure for immediate and sustained pulling power

• Load-Dependent Power Delivery: Dynamically responds to accelerator input for smooth everyday driving or aggressive full-load performance

• Fuel Efficiency Optimisation: Fine atomisation of fuel achieves higher power while maintaining efficiency

• Safe & Reversible: Fully reversible installation without modifying the original ECU

• Persistent Performance: Retains tuning through manufacturer software updates

How It Works

1. Engine RPM & Load Monitoring: Reads engine speed via camshaft or CANBUS for precise torque calculation

2. Torque Calculation: Measures engine acceleration and load to optimise performance

3. Fuel Injection Adjustment: Extends injection duration via map sensor for smooth and powerful output

4. Turbo Boost Optimisation: Regulates turbo pressure and spool-up for enhanced acceleration

5. Load-Dependent Adjustment: Fuel and electric torque dynamically adjust based on throttle input

6. Fuel Economy: Optimises fuel use for maximum efficiency while delivering peak performance

Specifications

• Output: 550HP / 810Nm

• Installed in the engine compartment for persistent tuning

• Fully reversible and non-invasive

• Safe power optimisation within engine and hybrid limits

• Improves throttle response, torque, and overall drivability

• Compatible with BMW G05 X5 50E plug-in hybrid powertrain

Installation Notes

• Professional installation recommended if unsure

• Let the vehicle rest 10 minutes after opening the hood before unplugging sensors

• OBD tools may be required to clear errors after installation

• No permanent modifications required

Compatibility / Fitment

• BMW G05 X5 50E (Plug-in Hybrid, 2019+)

Designed specifically for BMW G05 X5 50E plug-in hybrid powertrain.