Jaguar XK ECU remapping
6 files available
About remapping
The Jaguar XK accounts for 6 files in our catalogue, dominated by the 4.2i V8 Kompressor supercharged petrol with a 5.0 V8 also present. It is the marque's grand tourer.
Stage 1 makes up 5 files — a completely clean profile with no maintenance work at all. The ECUs are Denso references.
Model highlights
- ›5 Stage 1 files: a completely clean performance profile.
- ›Dominated by the 4.2i V8 Kompressor supercharged petrol.
- ›The marque's grand tourer.
- ›ECUs limited to Denso references.
Fuel split
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| 5.0 V8 | Petrol | 385 hp | 408 hp +23 | — |
| 4.2 V8 | Petrol | 298 hp | 324 hp +26 | — |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
4.2 V8
ECUs
Generations covered
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
Request a free quote for your vehicle and we'll tell you the gains you can expect.
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Log in as a professionalFrequently asked questions
How much does a supercharged V8 take?
It has genuine headroom, more than a naturally aspirated engine, and responds well to a measured map on standard hardware.
How does it differ from the XKR entry?
The XKR is the high-performance version. Each has its own entry in our catalogue.
Is the work reversible?
Yes. We always keep the original ECU file, so the car can be returned to its factory configuration.