Jaguar XJ · 2003 - 2009
4.2 V8 SC 400hp Stage 1 tuning
The Jaguar XJ 4.2 V8 SC 400hp produces 400 hp and 540 Nm as standard. The YASTUNING Stage 1 remap file takes it to 470 hp and 630 Nm, a gain of +70 hp and +90 Nm. Engine code AJ34. ECU: Denso MB279700. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.
Power
400 hp
470 hp
+70 hp
Torque
540 Nm
630 Nm
+90 Nm
Engine specifications
- Engine code
- AJ34
- Fuel
- Petrol
- Displacement
- 4196 cc
- Compression
- 9.1 : 1
- Bore × Stroke
- 86.0 X 90.3 mm
- ECU
- Denso MB279700
- Method
- Chiptuning
Available options
Software options we can include with the Jaguar XJ 4.2 V8 SC 400hp file on request.
- DECAT
- DTC Removal
- FLAPS
- Vmax
Supported read methods
Tools known to read and write this ECU. Send the stock file from any of them and we return the tuned file in the same format.
- Alientech KESSv2
- New Trasdata