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Stage 2

Stage 2 · Petrol · 335i - N55 Twinscroll - 306hp

BMW E90-E91- E92-E93 3.0i Stage 2 file Siemens · SW 777227

BMW E90-E91- E92-E93 3.0i Turbo Petrol 225.1 kW (306 HP) Stage 2

2006, Turbo petrol, 225.1 kW (306 hp)

306 → 386 HP +80 HP +140 Nm 26% more power

Calibrated ECU file for (SW 777227). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

Performance projection

Matched engine: 335i - N55 Twinscroll - 306hp, N55B30A, 3L, Petrol. Engine #861 in our gains database.

090180270360 1000200030004000500060007000 386 HP +80 540 Nm +140 HP Nm RPM 0140280420560
Stock · Stage 2 · HP (left) · Nm (right) · Curve shape typical for this ECU family
Power
386 HP+80 HP from 306
Torque
540 Nm+140 Nm from 400
Fuel economy
−8 %−12% full load

Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.

How it works

  1. Read your ECU

    With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.

  2. Match the numbers

    Your read must show hardware 5WK93608 and software 777227.

  3. Pay and download

    Card, Apple Pay or Google Pay. The file is in your account straight away.

  4. 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: Stage 2, Petrol.

Hardware

  • Sport / decat downpipe (or sports-cat)
  • High-flow air intake
  • Optional: front-mount intercooler upgrade for sustained boost

Software / calibration

  • Cat-warm-up & secondary lambda re-mapped for decat hardware
  • Boost target raised in line with cooling capacity
  • Knock / ignition advance re-trimmed
  • Idle and load-transition tables refined

Stage 2 keeps the factory turbo and internals. Final figures vary slightly with the exact hardware fitted.

Vehicle & ECU specifications

Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.

Vehicle make BMW
Vehicle model E90 E91
Model year 2006
Fuel / Induction Petrol
Factory power 225.1 kW (306 HP)
ECU manufacturer Siemens
ECU hardware 5WK93608
ECU software 777227
Calibration stage Stage 2
Cylinder capacity 2979 CC
Compression ratio 10,2 : 1
Bore × Stroke 84,0 X 89,6 mm
OEM engine code N55B30A
File format BIN / ORI
Checksum Pre-corrected (ready to flash)
Delivery Instant download after payment

Engine performance matrix

Power, torque and fuel-economy figures for every tuning stage on this engine, sourced from the tuning-database Gains API. Values are healthy-engine crank numbers; real on-road gains vary with fuel, altitude and mechanical condition.

Engine335i - N55 Twinscroll - 306hp CodeN55B30A Displacement3L Capacity2979 CC Compression10,2 : 1 Bore × Stroke84,0 X 89,6 mm FuelPetrol Engine ID#861
Stage Power Torque Δ HP Δ Nm
Original / Factory 306 HP 400 Nm — —
Stage 1 360 HP 520 Nm +54 (17.6%) +120
Stage 2 386 HP 540 Nm +80 (26.1%) +140
Stage 3 505 HP 620 Nm +199 (65%) +220
Stage 4 597 HP 740 Nm +291 (95.1%) +340
Fuel economy gain (vs. factory map, same driving profile): combined cycle −8% , full-load cruise −12%. Diesel calibrations typically net bigger combined-cycle savings thanks to shorter duty-cycle on low-load driving.

About this calibration file

The Stage 2 calibration for the 2006 BMW E90 E91 Petrol is written for vehicles with supporting bolt-ons: a higher-flow downpipe or sports catalyst, upgraded intercooler and upgraded intake are recommended. Boost targets, fuel-rail pressure, injector duration and VGT positioning are pushed further than a Stage 1 map while keeping exhaust-gas temperatures inside safe bands.

This file matches a Siemens ECU with hardware number 5WK93608 and software version 777227. Verify both identifiers in your flashing tool before writing — an ID mismatch is the most common cause of a bricked ECU. If you are unsure, upload a read of your original file via the file-request wizard and our engineers will confirm compatibility before you flash.

Projected output on a healthy, stock-hardware example of this engine: 386 HP and 540 Nm at the crank — a gain of +80 HP (26%) and +140 Nm over the factory 306 HP / 400 Nm baseline. These numbers are sourced from our Vehicle Performance Database, which aggregates dyno results across this engine family. Real-world gains depend on fuel grade, ambient temperature, mechanical condition and intake/exhaust state.

The file is delivered as a ready-to-flash BIN (and ORI backup where applicable) compatible with all major tools — KESS V2/V3, KTAG, AutoTuner, CMDFlash, Dimsport New Genius, MPPS, Flex, BFlash, PCMFlash, MMFlash — via OBD, bench or boot-mode as supported by your ECU family. Checksums are pre-computed and verified; no additional checksum tool is required. All files include a free revision if post-flash logs reveal a fuelling, boost or EGT issue.

Frequently asked questions

The file is written for the exact ECU hardware 5WK93608 (Siemens) listed in the specifications. Read your ECU with any supported tool (KESS, KTAG, AutoTuner, CMD, etc.) and compare the hardware + software numbers against the ones on this page. If they match exactly, the file is a direct fit. If you're not 100% sure, upload your original read via the file-request wizard and our engineers will confirm within minutes — no cost, no obligation.

Stage 2 benefits from a higher-flow downpipe or sports catalyst, an upgraded intercooler on forced-induction engines, and in some cases a cooler intake. The map will run on stock hardware but will not reach the quoted figures without the supporting bolt-ons.

Re-flashing the ECU leaves a flag that a franchised BMW dealer can detect with their diagnostic tool. Most markets treat this as a basis to deny powertrain warranty claims that the modification could have caused. Emissions-sensitive components (DPF, EGR, SCR) remain fully functional with this calibration — we do not remove, disable or alter any emissions hardware.

The power and torque numbers on this page are healthy-engine crank figures. On a well-maintained 2006 BMW E90 E91 running a known-good fuel brand, you should see a clearly perceptible increase in mid-range pull — typically from 1,800 to 4,000 rpm on diesel, 2,500 to 6,000 rpm on petrol — along with a shorter 80-to-120 km/h in-gear time. Thermal performance and fuel consumption depend on how you drive post-tune.

Instant. As soon as the payment clears, the file appears under Downloads in your account and the link is emailed to you. It does not expire: sign in and download it again whenever you need it.

Pre-corrected. Every tuning file we sell is processed through CHKSuite (our in-house checksum engine) before it reaches your download link. You can flash it directly with KESS, KTAG, AutoTuner, CMD, Dimsport or any other supported tool — no extra checksum step required. A zero-CRC write to a modern Bosch/Siemens/Delphi ECU bricks the unit, so this is non-negotiable.

Contact us on WhatsApp or through the dashboard support thread. Free revisions are included for the same stage on the same ECU — send us a live log (via VCDS, INPA, EcuConnect, OBDeleven or similar) and we'll adjust timing, boost, rail pressure or smoke limits and re-issue the file. A failed flash itself (write aborted, bricked ECU) is recoverable with our Original file and a bench tool.

Product details

This product contains a calibrated Stage2 tuning file for BMW E90-E91- E92-E93 3.0i 2006 Turbo-Benzin 225.1KW with Siemens 5WK93608 (Bosch software number 777227 ( 1037777227 )). The base stock vehicle for this calibration has a factory output of around 225.1 kW (~306 HP). Stage 2 is intended for cars with supporting modifications (exhaust, intake, intercooler) and delivers a stronger performance gain.

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, 777227 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprint424A8E01 FE1AF7CC 5F3719ED 62A40A0B 4D964CC9 469B1971 18A7D502 0E8AB8B5