Original file
Original / Factory · Petrol · 335i 306hp
BMW E90-E91 335i original file Siemens · SW 433322
BMW E90-E91 335i 225.1 kW (306 HP)225.1 kW (306 hp)
306 HP Factory calibration Stock backup file, 400 Nm, Petrol
Calibrated ECU file for (SW 433322). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 335i 306hp, N55B30A, 3L, Petrol. Engine #872 in our gains database.
- Power
- 306 HPfactory calibration
- Torque
- 400 Nmfactory calibration
Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.
How it works
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Read your ECU
With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.
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Match the numbers
Your read must show hardware 5WK93608 and software 433322.
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Pay and download
Card, Apple Pay or Google Pay. The file is in your account straight away.
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Write it and drive
Write it back the way you read it. Not right for your car? We correct it free.
What the car needs
Required modifications: Factory, Petrol.
Hardware
- Factory hardware: no modifications required
Software / calibration
- OEM calibration restored (recovery / immobiliser / coding work)
Original files are used to revert to factory state, repair after a faulty tune, or recover an ECU before service work.
Product details
This product contains a complete original ECU backup (stock file) for BMW E90-E91 335i 225.1KW with Siemens 5WK93608 (Bosch software number 433322 ( 1037433322 )). This original file corresponds to a factory engine output of approximately 225.1 kW (~306 HP). This file is ideal for ECU cloning, restoring the car back to stock and using it as a safe base for future remaps.
All ECU tuning files from TUNING-DATABASE are prepared for professional use. They are useful whenever you search by ECU ID, hardware or software number such as 5WK93608, 433322 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
53134799 F267C0FB 1471A74F 8A3DA1FF 75C1351E 6441F5F4 4A6D7C8A 6656AE0CFrequently asked questions
How do I flash this file?
Use your preferred tuning tool (KESS, KTAG, AutoTuner, CMD, etc.) to write the file to the ECU via OBD, bench, or boot mode.
Is the checksum corrected?
Yes. Every file we sell has verified checksums — ready to flash without additional correction tools.
What if I need a revision?
Contact us via WhatsApp or the support dashboard. Revisions for the same stage are free.