Stage 1

Cummins ISB All years 325 6.7L 327hp (240kW) 1017Nm Stage 1

Takes the 325 6.7L 327hp (240kW) 1017Nm from 327hp to 367hp, and 1017Nm to 1117Nm.

+40horsepower
+100newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
09919829739601,5002,5003,5004,500 RPM 09919829739602,0003,5005,000hp RPM
  • Standard 327hp
  • Remapped 367hp
Torque before and after
0302603905120601,5002,5003,5004,500 RPM 0302603905120602,0003,5005,000Nm RPM
  • Standard 1017Nm
  • Remapped 1117Nm

Standard against Stage 1

MeasureStandardAfterGain
Power327hp367hpup 40
Torque1017Nm1117Nmup 100

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 325 6.7L 327hp (240kW) 1017Nm, 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 325 6.7L 327hp (240kW) 1017Nm, and we check the car over before writing to it.

See the full 325 6.7L 327hp (240kW) 1017Nm page for every file and figure, the other engines on this ISB, or all Cummins remapping.

Book your ISB 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.