Engine

McCormick XTX All years 185M 173hp (127kW) 700Nm remap

Standard this engine makes 173hp and 700Nm. Our Stage 1 file takes it to 212hp and 835Nm.

+39horsepower
+135newton metres
1stage available

Where the power arrives

Both curves scaled from the manufacturer figures, on the Stage 1 file.

Power before and after
05711417222901,2001,6002,0002,400 RPM 05711417222901,4002,0002,600hp RPM
  • Standard 173hp
  • Remapped 212hp
Torque before and after
022545167690201,2001,6002,0002,400 RPM 022545167690201,4002,0002,600Nm RPM
  • Standard 700Nm
  • Remapped 835Nm

Stages for this engine

Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.

Every figure for the 185M 173hp (127kW) 700Nm

FilePowerGainTorqueGainPrice
Standard173hpn/a700Nmn/an/a
Stage 1212hpup 39835Nmup 135ask us

Economy files show no new power figure because they are written for torque and drivability rather than peak output.

Remapping the 185M 173hp (127kW) 700Nm

The McCormick XTX All years 185M 173hp (127kW) 700Nm runs a factory calibration built to cope with poor fuel, skipped servicing and hot countries. We rewrite the fuelling, boost and timing for this engine on this car, then test it before you get it back. The original file is kept, so it can go back to standard whenever you want.

On the petrol side the difference shows in throttle response and in how hard it pulls through the top half of the rev range. It feels sharper off idle and keeps going where it used to flatten out.

Figures on this page are for a standard car in good health. We read the fault codes and check the basics first, and if something needs attention we will tell you before we write anything. Have a look at the other engines on the All years, the full XTX range, or everything we do for McCormick.

Book your XTX

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.