November 2025 – ECUFILES Release
Clean catalyst-off solution now available for BMW 2.0 and 3.0 petrol engines with Bosch MG1CS003 ECU.
Most files disable too much, including the first lambda sensor and Vanos diagnostics. Our file only disables what truly needs to be disabled for catalyst removal. The first lambda sensor stays 100% functional, Vanos diagnostics remain active, and all safety systems work as normal.
No warning lights, full diagnostics, and readiness_ok in many cases for passed OBD tests.
Why this matters:
- Only catalyst changes applied
- First lambda and Vanos diagnostics fully active
- No errors
- Readiness_ok in many cases
- Safe for street and track
Perfect for BMW owners who want a free-flowing exhaust without losing reliability.
Already available in your ECUFILES account.
