Engine

Caterpillar C10 All years 10.3 305hp (224kW) 1250Nm remap

Standard this engine makes 305hp and 1250Nm. Our Stage 1 file takes it to 402hp and 1510Nm.

+97horsepower
+260newton metres
1stage available

Where the power arrives

Both curves scaled from the manufacturer figures, on the Stage 1 file.

Power before and after
010921732643401,2001,6002,0002,400 RPM 010921732643401,4002,0002,600hp RPM
  • Standard 305hp
  • Remapped 402hp
Torque before and after
04088151223163101,2001,6002,0002,400 RPM 04088151223163101,4002,0002,600Nm RPM
  • Standard 1250Nm
  • Remapped 1510Nm

Stages for this engine

Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.

Every figure for the 10.3 305hp (224kW) 1250Nm

FilePowerGainTorqueGainPrice
Standard305hpn/a1250Nmn/an/a
Stage 1402hpup 971510Nmup 260ask us

Economy files show no new power figure because they are written for torque and drivability rather than peak output.

Remapping the 10.3 305hp (224kW) 1250Nm

The Caterpillar C10 All years 10.3 305hp (224kW) 1250Nm runs a factory calibration built to cope with poor fuel, skipped servicing and hot countries. We rewrite the fuelling, boost and timing for this engine on this car, then test it before you get it back. The original file is kept, so it can go back to standard whenever you want.

On the petrol side the difference shows in throttle response and in how hard it pulls through the top half of the rev range. It feels sharper off idle and keeps going where it used to flatten out.

Figures on this page are for a standard car in good health. We read the fault codes and check the basics first, and if something needs attention we will tell you before we write anything. Have a look at the other engines on the All years, the full C10 range, or everything we do for Caterpillar.

Other engines on this C10

All years cars.

Book your C10

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.