Jaguar XKR 4.2 V8 Supercharged 416hp Remap

The Jaguar XKR 4.2 V8 Supercharged 416hp is a 4.2L supercharged petrol engine producing 416 BHP and 560 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 470 BHP and 650 Nm — a gain of around 54 BHP (13%) and 90 Nm (16%).

This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.

From a technical perspective, the transmission is many variants use zf 8-speed automatic (where fitted). at this torque level, transmission and driveline servicing history becomes especially important..

Considerations: High tuned torque: check transmission torque capacity and service history.

All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.