STAGE 1

BMW 1-Series F20 2011 to 2015 125i STAGE 1

Takes the 125i from 218hp to 290hp, and 310Nm to 450Nm.

+72horsepower
+140newton metres
£620from

Where the gain arrives

Standard against STAGE 1 through the rev range.

Power before and after
0781572353131,0001,9752,9253,9004,8505,825 RPM 0781572353131,0002,5504,0755,625hp RPM
  • Standard 218hp
  • Remapped 290hp
Torque before and after
01222433654861,0001,9752,9253,9004,8505,825 RPM 01222433654861,0002,5504,0755,625Nm RPM
  • Standard 310Nm
  • Remapped 450Nm

Standard against STAGE 1

MeasureStandardAfterGain
Power218hp290hpup 72
Torque310Nm450Nmup 140

What STAGE 1 involves

Stage 1 is for a standard car with nothing fitted. We read the original file off the ECU, write a calibration developed for the 125i, then road or rolling road test it before handing the car back. Nothing is added and nothing is removed, so it looks and services exactly as it did.

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 125i, and we check the car over before writing to it.

See the full 125i page for every file and figure, the other engines on this 1-Series, or all BMW remapping.

Book your 1-Series STAGE 1

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.