Stage 1

Claas Arion All years 540 4.5 R4 135hp (99kW) 585Nm Stage 1

Takes the 540 4.5 R4 135hp (99kW) 585Nm from 135hp to 161hp, and 585Nm to 731Nm.

+26horsepower
+146newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
0438713017401,2001,6002,0002,400 RPM 0438713017401,4002,0002,600hp RPM
  • Standard 135hp
  • Remapped 161hp
Torque before and after
019739559278901,2001,6002,0002,400 RPM 019739559278901,4002,0002,600Nm RPM
  • Standard 585Nm
  • Remapped 731Nm

Standard against Stage 1

MeasureStandardAfterGain
Power135hp161hpup 26
Torque585Nm731Nmup 146

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 540 4.5 R4 135hp (99kW) 585Nm, 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 540 4.5 R4 135hp (99kW) 585Nm, and we check the car over before writing to it.

See the full 540 4.5 R4 135hp (99kW) 585Nm page for every file and figure, the other engines on this Arion, or all Claas remapping.

Book your Arion 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.