JAGUAR XJR
Jaguar XJR 4.2 V8 Performance Enhancement
Supercharged Heritage
The **Jaguar XJR** 4.2 V8 is an iconic supercharged machine, evolving from the early Eaton‑equipped XK8 models. Delivering rapid acceleration and impressive refinement, it continues to be a favourite among enthusiasts seeking both luxury and performance.
Custom Jaguar XJR Exhaust Solutions
At DKU Performance, we specialise in developing fully bespoke **Jaguar XJR Exhaust** systems designed to maximise power, tone, and flow. Whether you want a deep, aggressive note or a refined performance sound, we create everything from custom back boxes to full cat‑back and manifold‑back systems in premium 304/316 stainless steel.
Carbon Cleaning & ECU Remap Options
With age, carbon build‑up and outdated mapping can hold the XJR back from peak performance. Our advanced carbon cleaning and ECU remap services help restore throttle response, improve torque, and unlock the true potential of your supercharged 4.2 V8.
Why Choose DKU Performance?
All exhaust systems are handcrafted in-house, engineered for durability and tuned for optimum power delivery. Explore our services at https://www.dkuperformance.co.uk/ and transform the sound and performance of your Jaguar XJR today.




