BMW 3-Series E46 1998 to 2005 M3 remap
Standard this engine makes 343hp and 365Nm. Our STAGE 2 file takes it to 375hp and 400Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 2 file.
- Standard 343hp
- Remapped 375hp
- Standard 365Nm
- Remapped 400Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the M3
The BMW 3-Series E46 1998 to 2005 M3 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.
On the petrol side the difference shows in throttle response and in how hard it pulls through the top half of the rev range. It feels sharper off idle and keeps going where it used to flatten out.
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 E46 1998 to 2005, the full 3-Series range, or everything we do for BMW.
Similar power, other makes
Cars running about the same standard output, for comparison.
Other 3-Series generations
Book your 3-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.