Jaguar XK8 Tuning
1 supported Jaguar XK8 application, 2006+.
Jaguar
1 supported XK8 tunes
Jaguar XK8
4.2 V8
298 HP stock / 303 lb-ft
2006+
- Controller
- Engine (ECU): Denso MB279700
- Flash method
- OBD port
AutoTunerBook a tune
All Supported Jaguar XK8 Tunes
| Engine | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| 4.2 V8 | 2006+ | 298 hp | ECU Denso MB279700 | AutoTuner |
Other Jaguar Models
About Jaguar XK8 tuning
Rapid Racing supports 1 Jaguar XK8 application from 2006+ through AutoTuner, with stock outputs up to 298 hp. Every calibration is built for your exact engine, fuel, and modifications, then verified on our Dynojet 424xLC2 in Jenison, MI, serving Grand Rapids and West Michigan.
Supported engines: 4.2 V8.
Supported controllers: Denso MB279700.
Don't See Your Vehicle?
These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.