Engine

Caterpillar C9 All years 8.8 Acert 356hp (262kW) 1562Nm remap

Standard this engine makes 356hp and 1562Nm. Our Stage 1 file takes it to 412hp and 1790Nm.

+56horsepower
+228newton metres
1stage available

Where the power arrives

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

Power before and after
011122233444502,0004,0006,0008,000 RPM 011122233444503,0006,0009,000hp RPM
  • Standard 356hp
  • Remapped 412hp
Torque before and after
04839671450193302,0004,0006,0008,000 RPM 04839671450193303,0006,0009,000Nm RPM
  • Standard 1562Nm
  • Remapped 1790Nm

Stages for this engine

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

Every figure for the 8.8 Acert 356hp (262kW) 1562Nm

FilePowerGainTorqueGainPrice
Standard356hpn/a1562Nmn/an/a
Stage 1412hpup 561790Nmup 228ask us

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

Remapping the 8.8 Acert 356hp (262kW) 1562Nm

The Caterpillar C9 All years 8.8 Acert 356hp (262kW) 1562Nm 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 C9 range, or everything we do for Caterpillar.

Book your C9

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.