Petrol

Ford Mustang up to 2014 4.6 V8 GT remap

Standard this engine makes 300hp and 430Nm. Our STAGE 1 file takes it to 320hp and 460Nm.

+20horsepower
+30newton metres
2stages available

Where the power arrives

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

Power before and after
0861732593461,0001,9502,9003,8754,8255,775 RPM 0861732593461,0002,5254,0505,600hp RPM
  • Standard 300hp
  • Remapped 320hp
Torque before and after
01242483734971,0001,9502,9003,8754,8255,775 RPM 01242483734971,0002,5254,0505,600Nm RPM
  • Standard 430Nm
  • Remapped 460Nm

Stages for this engine

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

Every figure for the 4.6 V8 GT

FilePowerGainTorqueGainPrice
Standard300hpn/a430Nmn/an/a
ECOn/an/a460Nmup 30£490
STAGE 1320hpup 20460Nmup 30£590

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

Remapping the 4.6 V8 GT

The Ford Mustang up to 2014 4.6 V8 GT 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 up to 2014, the full Mustang range, or everything we do for Ford.

Other Mustang generations

Book your Mustang

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.