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VAG 4.0 TSI Remap & Chiptuning – Audi S8 D5, RS Q8, S6/S7 C7 4.0 TFSI
Covers the VAG group: Volkswagen, Audi, Škoda, SEAT, Cupra.
Professional ECU tuning and remapping for the VAG 4.0 TSI petrol engine. Our dyno-tested Stage 1 and Stage 2 calibrations sharpen throttle response and power delivery, with options such as Pop & Bang, GPF/OPF off and limiter changes for supported ECUs.
Engine codes: EA825 4.0 TFSI V8
Fitted to Audi S8 D5RS Q8S6/S7 C7 4.0 TFSI
Performance Gains (Dyno-Tested)
| Engine | Stock | Tuned | HP Gain | Torque Gain | ECU | Order |
|---|---|---|---|---|---|---|
| 4.0 TSI | 600 hp | 655 hp | +55 hp +9% | +97 Nm | MG1CS008Stage 1 | Order file → |
Figures are dyno-tested averages and may vary with hardware condition and fuel quality.
Cars this engine is fitted to
Audi S8 D5, RS Q8, S6/S7 C7, Audi RS6, Audi RS6 Avant, Audi RS6 Avant C8 and 3 more
Fitment is read from the ECU part numbers in our own database, not from a generic catalogue. The same engine and control unit are fitted to several cars, which is why one page serves them all.
Audi · 9Measured here, tunable everywhere
The figures in the table above are readings taken on the dyno for this engine, not software estimates rounded up to sell a file, and our Stage 1 is calibrated to stay inside the margins the engine was designed with. Only a part of our work is published this way: every ECU, engine and model we can read can be remapped for power, measured page or not.
Supported ECU(s): MG1CS008
Frequently Asked Questions
How much power can a VAG 4.0 TSI gain with Stage 1 tuning?
Stage 1 ECU tuning for the VAG 4.0 TSI can add up to +55 hp and +97 Nm of torque, based on dyno-tested calibrations. Actual figures depend on the exact engine variant and hardware condition.
How do I order and how fast is the tuning file delivered?
Upload your original ECU read through the tuning page and receive the calibration by email. Most files are delivered within 15-20 minutes during working hours (daily, 07:00-23:00 CET).
Is the VAG 4.0 TSI tuning file plug-and-play?
You receive a ready-to-flash calibration based on your original file. Flashing it back to the ECU and any related mechanical preparation are handled by the installer with their own tools.
Order your VAG 4.0 TSI tuning file
Upload your original ECU file and receive a professional calibration in 15-20 minutes.
Tune Your File →v4.31.23