Stage 1

Mack Trucks MP8 (2005 >) All years MP8-425E (US07) 12.0 431hp (317kW) 2115Nm Stage 1

Takes the MP8-425E (US07) 12.0 431hp (317kW) 2115Nm from 431hp to 488hp, and 2115Nm to 2346Nm.

+57horsepower
+231newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
013226439552701,2001,6002,0002,400 RPM 013226439552701,4002,0002,600hp RPM
  • Standard 431hp
  • Remapped 488hp
Torque before and after
063312671900253401,2001,6002,0002,400 RPM 063312671900253401,4002,0002,600Nm RPM
  • Standard 2115Nm
  • Remapped 2346Nm

Standard against Stage 1

MeasureStandardAfterGain
Power431hp488hpup 57
Torque2115Nm2346Nmup 231

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 MP8-425E (US07) 12.0 431hp (317kW) 2115Nm, 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 MP8-425E (US07) 12.0 431hp (317kW) 2115Nm, and we check the car over before writing to it.

See the full MP8-425E (US07) 12.0 431hp (317kW) 2115Nm page for every file and figure, the other engines on this MP8 (2005 >), or all Mack Trucks remapping.

Book your MP8 (2005 >) 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.