Jaguar XJ 2009 -> 5.0 V8 385hp

Real standard and upgraded performance figures for the 5.0 V8 385hp engine in the Jaguar XJ 2009 ->.

The Jaguar XJ 2009 -> 5.0 V8 385hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.

Horsepower (HP)Torque (Nm)
Standard385515
Stage 1405540
Stage 2415552
Make
Jaguar
Model
XJ
Generation
2009 ->
Engine
5.0 V8 385hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Jaguar XJ 2009 -> 5.0 V8 385hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 5.0 V8 385hp make after tuning?

Standard output is 385 HP / 515 Nm; Stage 1 on this engine typically reaches 405 HP / 540 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Jaguar XJ 2009 -> 5.0 V8 385hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 5.0 V8 385hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.