Engine

DAF LF45 All years 3.9L 150hp (110kW) 550Nm remap

Standard this engine makes 150hp and 550Nm. Our Stage 1 file takes it to 172hp and 628Nm.

+22horsepower
+78newton metres
1stage available

Where the power arrives

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

Power before and after
0469313918601,5002,5003,5004,500 RPM 0469313918602,0003,5005,000hp RPM
  • Standard 150hp
  • Remapped 172hp
Torque before and after
017033950967801,5002,5003,5004,500 RPM 017033950967802,0003,5005,000Nm RPM
  • Standard 550Nm
  • Remapped 628Nm

Stages for this engine

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

Every figure for the 3.9L 150hp (110kW) 550Nm

FilePowerGainTorqueGainPrice
Standard150hpn/a550Nmn/an/a
Stage 1172hpup 22628Nmup 78ask us

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

Remapping the 3.9L 150hp (110kW) 550Nm

The DAF LF45 All years 3.9L 150hp (110kW) 550Nm 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 LF45 range, or everything we do for DAF.

Book your LF45

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.