Stage 1

John Deere 8R Series All years 8335RT 335hp (246kW) 1569Nm Stage 1

Takes the 8335RT 335hp (246kW) 1569Nm from 335hp to 360hp, and 1569Nm to 1734Nm.

+25horsepower
+165newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
09719429238901,2001,6002,0002,400 RPM 09719429238901,4002,0002,600hp RPM
  • Standard 335hp
  • Remapped 360hp
Torque before and after
04689361405187301,2001,6002,0002,400 RPM 04689361405187301,4002,0002,600Nm RPM
  • Standard 1569Nm
  • Remapped 1734Nm

Standard against Stage 1

MeasureStandardAfterGain
Power335hp360hpup 25
Torque1569Nm1734Nmup 165

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 8335RT 335hp (246kW) 1569Nm, 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 8335RT 335hp (246kW) 1569Nm, and we check the car over before writing to it.

See the full 8335RT 335hp (246kW) 1569Nm page for every file and figure, the other engines on this 8R Series, or all John Deere remapping.

Book your 8R Series 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.