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Remapping Jaguar XJ

9 engines · 2 generations — up to +70 hp

Compare every Jaguar XJ engine we remap: stock figures, Stage 1 gains and prices, plus ethanol (E85) options.

9
engines
+70 hp
up to
+89 Nm
up to
€490
Stage 1 from

Find your vehicle directly

Search for your vehicle to see remapping options, expected gains and our prices.

Jaguar XJ — engines
EngineStockAfter Stage 1GainE85 ethanolFrom
2003 - X350
2.7 TDV6 207ch 207 hp 230 hp +23 hp €490
5.0 V8 385ch 385 hp 405 hp +20 hp Ethanol conversion available €590
4.2 V8 supercharged 400ch★ 400 hp 470 hp +70 hp Ethanol conversion available €790
2009 - X351
2.0d 163ch 163 hp 195 hp +32 hp €550
2.0d 180ch 180 hp 195 hp +15 hp €550
2.0 TI 240ch 240 hp 265 hp +25 hp Ethanol conversion available €590
2.0T 250ch 250 hp 275 hp +25 hp Ethanol conversion available €550
3.0 d 275ch 275 hp 310 hp +35 hp €590
3.0 V6 supercharged 340ch 340 hp 400 hp +60 hp Ethanol conversion available €790

Top 3 engines

Best petrol gain 4.2 V8 supercharged 400ch 400 hp → 470 hp · +70 hp · €790 View
Best diesel gain 3.0 d 275ch 275 hp → 310 hp · +35 hp · €590 View
Best gain / price ratio 4.2 V8 supercharged 400ch 400 hp → 470 hp · +70 hp · €790 View

Switch to ethanol (E85)

5 Jaguar XJ engines are compatible with E85 conversion in our catalogue. Ethanol saves up to 50% at the pump and cuts your carbon footprint — with no compromise on performance. Good for your wallet and for the planet.

Find your vehicle
5
E85-compatible engines

Other models Jaguar

XF 22 F-Pace 17 E-pace 14 F-Type 10 XE 9 S-Type 4
See all models Jaguar

FAQ

What gains can I expect on a Jaguar XJ?
Gains depend on the exact engine: the comparison table above shows stock vs Stage 1 power and torque for each Jaguar XJ version.
How much is a Jaguar XJ Stage 1?
From €490. Pick your engine for the exact price.
Is E85 conversion available on the Jaguar XJ?
Yes, 5 Jaguar XJ engines are E85-compatible in our catalogue. Ethanol can halve your fuel bill and shrink your carbon footprint, with performance left intact.
Where can I get my Jaguar XJ remapped?
Our workshop is in Lathuile (74210), at the southern end of Lake Annecy, by appointment, Monday to Friday 9am–6pm and Saturday 8am–12pm. We can also come to your home within about 1h30 of Annecy (power socket and internet connection required; travel costs may apply). Find Alpes Reprog on Google Maps