Stage 1

Caterpillar C4 All years TH336 Acert 128hp (94kW) 499Nm Stage 1

Takes the TH336 Acert 128hp (94kW) 499Nm from 128hp to 153hp, and 499Nm to 612Nm.

+25horsepower
+113newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
0418312416501,2001,6002,0002,400 RPM 0418312416501,4002,0002,600hp RPM
  • Standard 128hp
  • Remapped 153hp
Torque before and after
016533049666101,2001,6002,0002,400 RPM 016533049666101,4002,0002,600Nm RPM
  • Standard 499Nm
  • Remapped 612Nm

Standard against Stage 1

MeasureStandardAfterGain
Power128hp153hpup 25
Torque499Nm612Nmup 113

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 TH336 Acert 128hp (94kW) 499Nm, 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 TH336 Acert 128hp (94kW) 499Nm, and we check the car over before writing to it.

See the full TH336 Acert 128hp (94kW) 499Nm page for every file and figure, the other engines on this C4, or all Caterpillar remapping.

Book your C4 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.