Jaguar XJ S/C ECU Tuning (No Handheld) 5.0L

Jaguar XJ S/C ECU Tuning (No Handheld) 5.0L. Performance ECU re-programming. Performance ECU remapping can deliver stunning results, transforming power delivery, throttle response, sound and transmission systems in your new Supercharged Jaguar XJ 5.0L.

*Jaguar XJ S/C: 45-50 BHP increase.

**Must be flashed through the OBD-II port. Please contact us for more information.

**If you are located outside the Chicago area, we can send you a laptop and walk you through programming your car through the OBD-II port. A security deposit will be needed for computer. Please contact us.

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