Jeep Grand Cherokee 2011 onwards 6.4 V8 SRT8 remap
Standard this engine makes 468hp and 624Nm. Our STAGE 1 file takes it to 488hp and 654Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 1 file.
- Standard 468hp
- Remapped 488hp
- Standard 624Nm
- Remapped 654Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Every figure for the 6.4 V8 SRT8
| File | Power | Gain | Torque | Gain | Price |
|---|---|---|---|---|---|
| Standard | 468hp | n/a | 624Nm | n/a | n/a |
| STAGE 1 | 488hp | up 20 | 654Nm | up 30 | £890 |
Economy files show no new power figure because they are written for torque and drivability rather than peak output.
Remapping the 6.4 V8 SRT8
The Jeep Grand Cherokee 2011 onwards 6.4 V8 SRT8 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 2011 onwards, the full Grand Cherokee range, or everything we do for Jeep.
Other engines on this Grand Cherokee
2011 onwards cars.
Similar power, other makes
Cars running about the same standard output, for comparison.
Other Grand Cherokee generations
Book your Grand Cherokee
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.