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Original file

Original / Factory · Petrol · 4.2 V8 Supercharged 416hp

Jaguar XK8-XKR 4.2i V8 original file Denso

Jaguar XK8-XKR 4.2i V8 Petrol 308.9 kW (420 HP) Original

2004, Petrol, 308.9 kW (420 hp)

416 HP Factory calibration Stock backup file, 560 Nm, Petrol

Calibrated ECU file . Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

Performance projection

Matched engine: 4.2 V8 Supercharged 416hp, 9C, 4.2L, Petrol. Engine #3667 in our gains database.

0100200300400 1000200030004000500060007000 416 HP +0 560 Nm +0 HP Nm RPM 0140280420560
Stock · Factory · HP (left) · Nm (right) · Curve shape typical for this ECU family
Power
416 HPfactory calibration
Torque
560 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

    The numbers in your read must be the ones listed on this page.

  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 Jaguar
Vehicle model Xk8 Xkr
Model year 2004
Fuel / Induction Petrol
Factory power 308.9 kW (420 HP)
ECU manufacturer Denso
Calibration stage Original (Factory)
Cylinder capacity 4196 CC
Compression ratio 9,1 : 1
Bore × Stroke 86,0 X 90,3 mm
OEM engine code 9C
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 V8 Supercharged 416hp Code9C Displacement4.2L Capacity4196 CC Compression9,1 : 1 Bore × Stroke86,0 X 90,3 mm FuelPetrol Engine ID#3667
Stage Power Torque Δ HP Δ Nm
Original / Factory 416 HP 560 Nm — —
Stage 1 470 HP 650 Nm +54 (13%) +90
Stage 2 498 HP 683 Nm +82 (19.7%) +123
Stage 3 686 HP 868 Nm +270 (64.9%) +308
Stage 4 811 HP 1036 Nm +395 (95%) +476
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 2004 Jaguar Xk8 Xkr 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 Denso ECU. 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 (Denso) 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 Jaguar 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 Jaguar XK8-XKR 4.2i V8 2004 Benzin 308.9KW with Denso . This original file corresponds to a factory engine output of approximately 308.9 kW (~420 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 the ECU part number in the product title.Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprint3EC8B16B 8DFEC911 08441122 DB4DB6FD C513314B EEE24AE7 6F07FA83 73D7C17A