Easy to install. Affordable. Reliable.

G4X PlugIn ECUs offer the latest in engine management technology, designed to easily maximize the potential from your car. This ECU fits inside the factory OEM enclosure. Installation is a breeze, with no alteration of the factory wiring loom required for the models listed below.

This ECU is designed for the E36 M50TUB25.

• Please check your connector matches the header in the listed photo before purchasing.
• Works with manual & automatic transmissions
• Check the features for I/O expansion options
• Most factory features are supported.
• Air temp sensor highly recommended
• Built in 4 Bar MAP sensor or 7 Bar MAP sensor included

Suitable Applications

M50TUB25 engine with the Bosch M3.3.1 ECU from factory

G4X PlugIn Key Features (where applicable):

• Up to 6D fuel and ignition mapping
• Precision closed loop cam control (four cam, independent control)
• Sequential fuel delivery
• Digital triggering, all OEM patterns
• OEM idle hardware supported
• 5D boost control with three switchable tables
• Motorsport features - antilag, launch, flat shift
• Continuous barometric correction (on board)
• CAN port
• QuickTune - automated fuel tuning
• Individual cylinder correction
• USB tuning cable included
• Stats recording into on-board memory
• Gear compensations for spark, boost and fuel
• Real time selectable dual fuel, ignition and boost maps
• Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical
• Boost control referenced to gear, speed or throttle position
• 512 MB data logging memory
• Staged injection
• Knock with "windowing"

I/O Expansion Options:

The following expansion connector inputs/outputs are provided:
Expansion connector 1

• TEMP3 - Temperature sensor input
• TEMP4 - Temperature sensor input
• VOLT4 - Analog 0-5V input
• VOLT5 - Analog 0-5V input
• DI8 - Digital Input
• DI7 - Digital Input
• +5V - Low Current +5V Supply
• GND - Sensor Ground Only

*Please see the PC Link Help file for details regarding installing the Expansion Cable.

Download Manual: Here

Please Note: All LinkECUs will ship "LOCKED" so they cannot be used if they are lost or stolen in transit. Once you received your ECU, please contact us with the Serial Number on your ECU or package, and we will provide the unlock code.