BMW 4-Series F32/33 2016 onwards 425d remap
Standard this engine makes 224hp and 450Nm. Our STAGE 1 file takes it to 270hp and 500Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 1 file.
- Standard 224hp
- Remapped 270hp
- Standard 450Nm
- Remapped 500Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the 425d
The BMW 4-Series F32/33 2016 onwards 425d runs a factory calibration built to cope with poor fuel, skipped servicing and hot countries. We rewrite the fuelling, boost and timing for this engine on this car, then test it before you get it back. The original file is kept, so it can go back to standard whenever you want.
Diesels like this one gain most through the middle of the rev range, which is where you actually drive. It pulls from lower down, holds a gear on a hill, and needs fewer downshifts to overtake. Drive it the same way afterwards and the economy usually improves a little.
Figures on this page are for a standard car in good health. We read the fault codes and check the basics first, and if something needs attention we will tell you before we write anything. Have a look at the other engines on the F32/33 2016 onwards, the full 4-Series range, or everything we do for BMW.
Other engines on this 4-Series
F32/33 2016 onwards cars.
- 418d150hp standardDiesel
- 420d163hp standardDiesel
- 420d184hp standardDiesel
- 420d190hp standardDiesel
- 430d258hp standardDiesel
- 435d313hp standardDiesel
- 418i136hp standardPetrol
- 430i230hp standardPetrol
- 430i252hp standardPetrol
- 440i326hp standardPetrol
- 440i (PP)360hp standardPetrol
- M4431hp standardPetrol
- M4 Competition450hp standardPetrol
- M4 CS460hp standardPetrol
Similar power, other makes
Cars running about the same standard output, for comparison.
Other 4-Series generations
Book your 4-Series
We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.