Stage 1

Caterpillar C9 All years 9.3 DPF 355hp (261kW) 1695Nm Stage 1

Takes the 9.3 DPF 355hp (261kW) 1695Nm from 355hp to 390hp, and 1695Nm to 1990Nm.

+35horsepower
+295newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
010521131642102,0004,0006,0008,000 RPM 010521131642103,0006,0009,000hp RPM
  • Standard 355hp
  • Remapped 390hp
Torque before and after
053710751612214902,0004,0006,0008,000 RPM 053710751612214903,0006,0009,000Nm RPM
  • Standard 1695Nm
  • Remapped 1990Nm

Standard against Stage 1

MeasureStandardAfterGain
Power355hp390hpup 35
Torque1695Nm1990Nmup 295

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 9.3 DPF 355hp (261kW) 1695Nm, 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 9.3 DPF 355hp (261kW) 1695Nm, and we check the car over before writing to it.

See the full 9.3 DPF 355hp (261kW) 1695Nm page for every file and figure, the other engines on this C9, or all Caterpillar remapping.

Book your C9 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.