BMW M3 E46 1998 to 2005 E46 M3 ECO
An economy file for the E46 M3. Torque goes to 390Nm, which is what makes it easier to drive without revving.
Where the gain arrives
Standard against ECO through the rev range.
- Standard 343hp
- Standard 365Nm
- Remapped 390Nm
Standard against ECO
| Measure | Standard | After | Gain |
|---|---|---|---|
| Power | 343hp | n/a | n/a |
| Torque | 365Nm | 390Nm | up 25 |
No new power figure is published for an economy file. It is written for torque and drivability, not peak output.
Other files for this engine
All written for the E46 M3 specifically.
What ECO involves
This one is aimed at running costs and how the car drives day to day. Torque comes in earlier and more evenly, so it pulls without needing revs. Driven sensibly it will usually give back a little on fuel. If you are after outright power, look at the other files above.
It takes most of a day. We keep your original file, so it can go back to standard at any point. Figures here are for a healthy E46 M3, and we check the car over before writing to it.
See the full E46 M3 page for every file and figure, the other engines on this M3, or all BMW remapping.
Other engines on this M3
Book your M3 ECO
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.