Jaguar

Jaguar XJ 2003 - 2009 4.2 V8 SC 400hp

PetrolCode: AJ344196 ccPremium fuel

Performance

Stock vs tuned

All gains based on tested files written by professional calibrators.

Stock

400hp
540nm

Stage 1

470hp+70
630nm+90

Stage 2

Not available for this engine.

Power and torque

Peak figures from our records. Curve shape is modelled, not a dyno trace.

Extra options

VmaxDTC RemovalDECATFLAPS

ECU

Compatible ECUs

Denso MB279700

Manufacturer: Denso

Type: MB279700

Denso MB079700

Manufacturer: Denso

Type: MB079700

Specifications

Technical data

Displacement
4196 cc
Engine code
AJ34
Bore
86.00 mm
Stroke
90.30 mm
Compression
9.10
Turbo type
Fuel
Petrol
Premium fuel
Required

Tuning file for Jaguar XJ 2003 - 2009 4.2 V8 SC 400hp

ECU tuning files for the Jaguar XJ 2003 - 2009 4.2 V8 SC 400hp are written and tested by professional calibrators. Each chiptuning file (Stage 1, Stage 2 and additional services like DPF OFF, EGR OFF and AdBlue removal) is programmed using the latest software and validated through years of remapping experience on the Jaguar XJ platform.

Bee Chiptuning specializes in custom ECU remapping for Jaguar vehicles. Every tuning file we deliver is designed for the best performance gains with a real safe margin remap that respects the limits of your hardware. Whether you want more horsepower, more torque, improved throttle response or better fuel economy, our dyno-tested calibrations deliver consistent and repeatable results on the 4.2 V8 SC 400hp.

Our benefits

  • Files written by professional calibrators
  • Dyno-tested before delivery
  • Stage 1 and Stage 2 calibrations
  • Delivered in less than an hour
  • Direct support via WhatsApp

Ready to tune?

Sign up and upload your original file.

You'll receive a tested ECU file for this exact engine in less than an hour. Free credit on registration, no card needed.