ECO

BMW 3-Series E90 2005 to 2010 M3 ECO

An economy file for the M3. Torque goes to 430Nm, which is what makes it easier to drive without revving.

+30newton metres
£690from

Where the gain arrives

Standard against ECO through the rev range.

Power curve
01132273404541,0002,2503,5254,7756,0257,300 RPM 01132273404541,0003,0255,0257,050hp RPM
  • Standard 420hp
Torque before and after
01162323484641,0002,2503,5254,7756,0257,300 RPM 01162323484641,0003,0255,0257,050Nm RPM
  • Standard 400Nm
  • Remapped 430Nm

Standard against ECO

MeasureStandardAfterGain
Power420hpn/an/a
Torque400Nm430Nmup 30

No new power figure is published for an economy file. It is written for torque and drivability, not peak output.

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 M3, and we check the car over before writing to it.

See the full M3 page for every file and figure, the other engines on this 3-Series, or all BMW remapping.

Book your 3-Series 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.