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Original file

Original / Factory · Petrol · 4.2 FSI 450hp

Audi RS4 4.2 V8 original file Bosch · 8T2907560 · SW 531220

Audi RS4 4.2 V8 Petrol 331 kW (450 HP) Original

2013, Petrol, 331 kW (450 hp)

450 HP Factory calibration Stock backup file, 430 Nm, Petrol

Calibrated ECU file for (SW 531220). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

Performance projection

Matched engine: 4.2 FSI 450hp, CFSA, 4.2L, Petrol. Engine #656 in our gains database.

0110220330440 1000200030004000500060007000 450 HP +0 430 Nm +0 HP Nm RPM 0100200300400
Stock · Factory · HP (left) · Nm (right) · Curve shape typical for this ECU family
Power
450 HPfactory calibration
Torque
430 Nmfactory calibration

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 8T2907560 and software 531220.

  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: 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.

Vehicle & ECU specifications

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

Vehicle make Audi
Vehicle model Rs4
Model year 2013
Displacement 4.2 L
Fuel / Induction Petrol
Factory power 331 kW (450 HP)
ECU manufacturer Bosch
ECU hardware 8T2907560
ECU software 531220
Calibration stage Original (Factory)
Cylinder capacity 4163 CC
Compression ratio 11,0 : 1
Bore × Stroke 84,5 X 92,8 mm
OEM engine code CFSA
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.

Engine4.2 FSI 450hp CodeCFSA Displacement4.2L Capacity4163 CC Compression11,0 : 1 Bore × Stroke84,5 X 92,8 mm FuelPetrol Engine ID#656
Stage Power Torque Δ HP Δ Nm
Original / Factory 450 HP 430 Nm — —
Stage 1 475 HP 460 Nm +25 (5.6%) +30
Stage 2 504 HP 483 Nm +54 (12%) +53
Stage 3 743 HP 667 Nm +293 (65.1%) +237
Stage 4 878 HP 796 Nm +428 (95.1%) +366
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

This is the factory (original) ECU calibration for the 2013 Audi Rs4 4.2L Petrol, extracted from a genuine stock control unit. Use it as a verified backup before flashing any performance tune, or as a reference when recovering an ECU from a failed write.

This file matches a Bosch ECU with hardware number 8T2907560 and software version 531220. 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.

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 8T2907560 (Bosch) 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.

Two reasons. First, if your ECU write failed mid-flash and you need a verified stock image to recover from — this file restores the unit to the exact calibration it left the factory with. Second, if you plan to experiment with a tune and want a known-good rollback point that is guaranteed identical to a Audi dealer programming.

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 complete original ECU backup (stock file) for Audi RS4 4.2 V8 2013 Benzin 331KW with Bosch 8T2907560 (Bosch software number 531220 ( 1037531220 )). This original file corresponds to a factory engine output of approximately 331 kW (~450 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 8T2907560, 531220 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprintDA4040C1 667E718E A8393721 0C33F25B 507F0541 0974B542 ADBE8BCB 4FF47FCE