BMW S55 3.0L Twin-Turbo – ECU Tuning
The S55 engine, found in the F8X BMW M3, M4, and M2 Competition, is a motorsport-derived twin-turbo straight-six with immense tuning potential. At TuneZilla, we’ve refined this platform to deliver linear, repeatable power while maintaining OEM-level drivability. With our Stage 1 and Stage 2 calibrations, your S55 becomes sharper, stronger, and more responsive across the entire powerband.
Requires
Stage 1 – ECU Tune
Optional Add-Ons
Start/Stop OFF
VMAX (Top Speed Limiter Removal)
DTC OFF
Sport Display Calibration
Crackle Map (Always ON or S-Mode Only, Stage 2 Only)
GTS Startup Roar
Overview:
Stage 1 transforms the stock S55 into a powerhouse while retaining reliability. Power delivery is optimized to ensure early torque onset and a broad, consistent pull through the RPM range. Perfect for those who want significant performance gains without hardware changes.
Notes
BMW S55 3.0L Twin-Turbo Tune Comparison
Stage | Horsepower | Torque (lb-ft) | Fuel | Required Hardware | Recommended Hardware | TCU Tune | Flash Method |
|---|
Stage 1 | 500 HP | 497 TQ | 93 Octane | None (Stock Hardware OK) | – | Optional | Dealer Only |
Stage 2 | 520 HP | 529 TQ | 93 Octane | Downpipe + Intercooler | Intake System, Charge Pipes | Optional | Dealer Only |
⚠️ Note: Both stages provide substantial increases in performance. Stage 2, in particular, places additional stress on driveline components during aggressive driving. Supporting modifications and proper maintenance are recommended for long-term reliability.
BMW S55 3.0L Twin-Turbo – ECU Tuning
The S55 engine, found in the F8X BMW M3, M4, and M2 Competition, is a motorsport-derived twin-turbo straight-six with immense tuning potential. At TuneZilla, we’ve refined this platform to deliver linear, repeatable power while maintaining OEM-level drivability. With our Stage 1 and Stage 2 calibrations, your S55 becomes sharper, stronger, and more responsive across the entire powerband.
Requires
Stage 2 – ECU Tune
Horsepower: 520 HP
Torque: 529 LB-FT
Fuel: 93 Octane
Hardware Requirements: Downpipe + Intercooler
Recommended Hardware: Intake System, Charge Pipes
Flashing: Must be flashed at a TuneZilla dealer
Optional Add-Ons
Start/Stop OFF
VMAX (Top Speed Limiter Removal)
DTC OFF
Sport Display Calibration
Crackle Map (Always ON or S-Mode Only, Stage 2 Only)
GTS Startup Roar
Overview:
Stage 2 unleashes the true potential of the S55. By upgrading the downpipe and intercooler, we increase airflow and cooling capacity, allowing higher boost levels and more aggressive calibration. The result is a harder-hitting, torque-rich setup with sustained power that elevates the S55 well beyond stock limits.
Notes
BMW S55 3.0L Twin-Turbo Tune Comparison
Stage | Horsepower | Torque (lb-ft) | Fuel | Required Hardware | Recommended Hardware | TCU Tune | Flash Method |
|---|
Stage 1 | 500 HP | 497 TQ | 93 Octane | None (Stock Hardware OK) | – | Optional | Dealer Only |
Stage 2 | 520 HP | 529 TQ | 93 Octane | Downpipe + Intercooler | Intake System, Charge Pipes | Optional | Dealer Only |
⚠️ Note: Both stages provide substantial increases in performance. Stage 2, in particular, places additional stress on driveline components during aggressive driving. Supporting modifications and proper maintenance are recommended for long-term reliability.