Stage 1

Caterpillar C13 All years 12.5 DPF 309hp (227kW) 1559Nm Stage 1

Takes the 12.5 DPF 309hp (227kW) 1559Nm from 309hp to 365hp, and 1559Nm to 1794Nm.

+56horsepower
+235newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
09919729639401,2001,6002,0002,400 RPM 09919729639401,4002,0002,600hp RPM
  • Standard 309hp
  • Remapped 365hp
Torque before and after
04849691453193801,2001,6002,0002,400 RPM 04849691453193801,4002,0002,600Nm RPM
  • Standard 1559Nm
  • Remapped 1794Nm

Standard against Stage 1

MeasureStandardAfterGain
Power309hp365hpup 56
Torque1559Nm1794Nmup 235

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 309hp (227kW) 1559Nm, 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 309hp (227kW) 1559Nm, and we check the car over before writing to it.

See the full 12.5 DPF 309hp (227kW) 1559Nm 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.