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The standard power of your BMW 4 serie 420i 184hp vehicle is factory 184 hp / 270 nm. After BMW 4 serie chip tuning custom vehicle software, your vehicle will gain +66 hp / +170 nm additional power and reach a total power of 250 hp / 440 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.
BMW 4 serie 420i 184hp chip tuning stage1 file is completed in about 1-2 hours.
| Type of fuel | petrol |
| Method | Chiptuning |
| Tuning type | Stage 1 |
| Cylinder content | 1998 CC |
| Compression ratio | 11.00 : 1 |
| Bore X stroke | 82.00 X 94.60 mm |
| Engine number | B48B20 |
| Engine ECU | Bosch MG1CS003 |
| Gearbox ECU | ZF 8HP |
