Stage 1

Caterpillar C13 All years 12.5 DPF 437hp (321kW) 2102Nm Stage 1

Takes the 12.5 DPF 437hp (321kW) 2102Nm from 437hp to 505hp, and 2102Nm to 2395Nm.

+68horsepower
+293newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
013627340954501,2001,6002,0002,400 RPM 013627340954501,4002,0002,600hp RPM
  • Standard 437hp
  • Remapped 505hp
Torque before and after
064712931940258701,2001,6002,0002,400 RPM 064712931940258701,4002,0002,600Nm RPM
  • Standard 2102Nm
  • Remapped 2395Nm

Standard against Stage 1

MeasureStandardAfterGain
Power437hp505hpup 68
Torque2102Nm2395Nmup 293

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 12.5 DPF 437hp (321kW) 2102Nm, 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 12.5 DPF 437hp (321kW) 2102Nm, and we check the car over before writing to it.

See the full 12.5 DPF 437hp (321kW) 2102Nm page for every file and figure, the other engines on this C13, or all Caterpillar remapping.

Book your C13 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.