Jaguar XJ tuning: everything you need to know
The Jaguar XJ is tuned via an ECU map optimisation tailored to each engine. Among the 9 available engines, gains vary by powertrain: expect on average 15 to 30% more power and torque from Stage 1.
Select your Jaguar XJ engine above to view detailed gains per stage (Stage 1, Stage 2, E85), stock and tuned performance, and indicative tuner pricing.
Jaguar XJ tuning: frequently asked questions
What gains can I expect from Jaguar XJ tuning?
On the Jaguar XJ, a Stage 1 remap typically adds 15 to 30% more power and torque depending on the engine, with no hardware changes.
Which XJ engine tunes best?
The turbocharged engines (both petrol and diesel) of the Jaguar XJ deliver the best gains. Select your engine above to see precise data.
Does tuning the Jaguar XJ void the warranty?
A remap is reversible, but it may affect the manufacturer warranty. A certified tuner will advise you on best practices for your XJ.
Where can I get my Jaguar XJ tuned?
Use the ChiptuneMAP directory to find a certified tuner near you, and compare reviews, pricing and specialities for your Jaguar XJ.