09/02/2026
How do you put a 5.2L Supercharged V8 in an E46? With an EMU Pro and a host of other ECUMaster goodies!
pro was able to put down 4-digit power numbers with this combination🤩
Who is choosing this over an LS or JZ swap?🙋♂️
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pro
Not a plug-and-play conversion.
This BMW E46 runs a supercharged 5.2L Cobra Jet V8 controlled by a fully integrated system: EMU PRO-8, PMU-16, ADU 7 and CAN Keypad.
The complete electrical and control package was developed from zero by AFTERFIX:
• vehicle and engine schematics
• pinouts and complete motorsport harness
• ECU, power management and dashboard integration
• base calibration, programming and dyno calibration
The car and dyno were in Poland. Programming and calibration were carried out remotely from Barcelona.
This session was about commissioning the car and increasing power in controlled steps — not chasing the maximum number. The result at this stage was 1,063 PS and 1,155 Nm on a large 3.375-inch supercharger pulley.
The driver can select the calibrated power mode directly from the ECUMASTER CAN Keypad.
A rare combination, engineered as one complete, documented and serviceable system.
Building a complex swap or race car?
AFTERFIX provides motorsport wiring, standalone ECU integration, power management and calibration for projects across Europe.
Based in Barcelona · Remote support available
DM to discuss your project.