Petrol

Mercedes AMG GT / Coupé 2018 onwards AMG GT 63 S (4.0 Bi-T) remap

Standard this engine makes 639hp and 900Nm. Our STAGE 1 file takes it to 680hp and 1000Nm.

+41horsepower
+100newton metres
2stages available

Where the power arrives

Power and torque through the rev range, on the STAGE 1 file.

Power before and after
01843675517341,0001,9752,9503,9254,9005,850 RPM 01843675517341,0002,5504,1005,675hp RPM
  • Standard 639hp
  • Remapped 680hp
Torque before and after
027054081010801,0001,9752,9503,9254,9005,850 RPM 027054081010801,0002,5504,1005,675Nm RPM
  • Standard 900Nm
  • Remapped 1000Nm

Stages for this engine

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

Every figure for the AMG GT 63 S (4.0 Bi-T)

FilePowerGainTorqueGainPrice
Standard639hpn/a900Nmn/an/a
ECOn/an/a1000Nmup 100£1,290
STAGE 1680hpup 411000Nmup 100£1,390

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

Remapping the AMG GT 63 S (4.0 Bi-T)

The Mercedes AMG GT / Coupé 2018 onwards AMG GT 63 S (4.0 Bi-T) 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 2018 onwards, the full AMG GT / Coupé range, or everything we do for Mercedes.

Book your AMG GT / Coupé

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.