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The standard power of your Audi RS4 4.2 FSI V8 420hp vehicle is factory 420 hp / 430 nm. After Audi RS4 chip tuning custom vehicle software, your vehicle will gain +20 hp / +25 nm additional power and reach a total power of 440 hp / 455 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.
Audi RS4 4.2 FSI V8 420hp chip tuning stage1 file is completed in about 1-2 hours.
| Type of fuel | petrol |
| Method | Chiptuning |
| Tuning type | Stage 1 |
| Cylinder content | 4163 CC |
| Compression ratio | 12.50 : 1 |
| Bore X stroke | 84.50 X 92.80 mm |
| Engine number | BNS |
| Engine ECU | Bosch MED9 |
| Gearbox ECU |
