Maserati 4200 GT / Coupé 2003 to 2007 4.2 V8 remap
Standard this engine makes 390hp and 451Nm. Our STAGE 1 file takes it to 422hp and 475Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 1 file.
- Standard 390hp
- Remapped 422hp
- Standard 451Nm
- Remapped 475Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the 4.2 V8
The Maserati 4200 GT / Coupé 2003 to 2007 4.2 V8 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 2003 to 2007, the full 4200 GT / Coupé range, or everything we do for Maserati.
Similar power, other makes
Cars running about the same standard output, for comparison.
Book your 4200 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.