Stage 1

Deutz Agrotron All years K420 4.0 R4 100hp (74kW) 413Nm Stage 1

Takes the K420 4.0 R4 100hp (74kW) 413Nm from 100hp to 120hp, and 413Nm to 470Nm.

+20horsepower
+57newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
032659713001,2001,6002,0002,400 RPM 032659713001,4002,0002,600hp RPM
  • Standard 100hp
  • Remapped 120hp
Torque before and after
012725438150801,2001,6002,0002,400 RPM 012725438150801,4002,0002,600Nm RPM
  • Standard 413Nm
  • Remapped 470Nm

Standard against Stage 1

MeasureStandardAfterGain
Power100hp120hpup 20
Torque413Nm470Nmup 57

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 K420 4.0 R4 100hp (74kW) 413Nm, 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 K420 4.0 R4 100hp (74kW) 413Nm, and we check the car over before writing to it.

See the full K420 4.0 R4 100hp (74kW) 413Nm page for every file and figure, the other engines on this Agrotron, or all Deutz remapping.

Book your Agrotron 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.