Jaguar XJ 4.2 Remapping & Tuning
£499.00
Jaguar XJ 4.2 Tuning and Jaguar XJR 4.2 Remap Tuning
Jaguar XJ Tuning and Jaguar XJR Remapping can be carried out by Paramount Performance at many locations across the UK and around the world.
Our Jaguar XJ tuning and Jaguar XJR remapping is completely custom, with each XJ remap being written live to your vehicle, the Jaguar XJ tuning can take account of your XJ’s modifications, i.e. Paramount Jaguar XJ performance exhaust systems, or sports catalytic convertors as well as your driving requirements and fuel grade.
Paramount operate the very latest range of car tuning and remap software and our dedicated team of car tuning engineers have years of experience working in the prestige and Ferrari car tuning arena.
Jaguar XJ tuning and Jaguar XJR ECU remapping gives a power increases of around 25bhp (depending on precise model) with significantly better throttle response, full custom chip tuning and live rolling road testing and tuning for your Jaguar XJ are available at many locations – please ask for details.
Paramount Performance is the home for all your Jaguar tuning and performance parts
In stock
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Jaguar XJR 4.2 Catalytic Converters Performance
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Jaguar XJ and XJR 4.2 Catalytic Converters
Jaguar XJ Catalytic Converters (Pair) – High Performance Jaguar XJ 4.2 Catalytic Converters
4.2 Jaguar XJ Catalytic Converters – High Performance 200 cell catalytic converters. The standard Jaguar XJ and XJR catalytic converters have 600 cells per square inch, these original standard cats can be very restrictive in their gas flow.
Paramount’s high flow Jaguar XJ Catalytic Converters have 200 cells per inch, these Jaguar XJ Catalytic Converters fit both the Jaguar XJ and XJR. These Jaguar XK Catalytic Converters are integrated into a large bore downpipe, they reduce back pressure substantially and increase flow rates, they are particularly effective on Jaguar Supercharged engines.
Emission levels remain fully road and MOT legal. Performance Hi-flow Jaguar Catalytic Converters and Sports Cats work exceptionally well on re-mapped (chip tuned) engines. The power increase delivered by our Jaguar XJ Catalytic Converters is around 22-25 bhp across the midrange.
These Jaguar S-Type 4.2 Racing Catalytic Converters also approved and tested to 600bhp. Using German TUV cat matrixes, they are not the cheap small Catalytic Converters used by many suppliers which burn out and fail in just 2-3 years. Or worse, melt block the exhaust system, potentially causing catastrophic failure of the engine.
If you are going to change your Catalytic Converters be sure to change them with a part of at least teh quality of the OEM original. Do it once and do it right.
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Standard Jaguar catalytic converters have 600 cells per square inch, these original standard cats can be very restrictive in their gas flow. Paramount have developed exclusive 200 cell Jaguar XKR 4.2 Catalytic Converters .
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Jaguar 4.2 XJR Supercharger Pulley – Upgraded Supercharger Pulley
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Dramatically improves throttle response and midrange power by up to 28bhp. Will bring your Jaguar 4.2 XJR to life. Paramount were the first to adopt and develop the new style of Jaguar XJR modified upper supercharger pulleys, unlike the lower expensive and cumbersome lower supercharger pulleys, the upper smaller pulley does not require an alternative pulley belt meaning the Paramount jaguar XJR supercharger pulley is low maintenance and less obviously changed from stock
Jaguar 4.2 XJR Supercharger Pulley
Not all Jaguar XJR performance supercharger pulleys are equal, The Paramount Jaguar XJR supercharger pulley is high grade stainless steel, some cheap copies are manufactured from Ally and are not of the same quality – buy with confidence from Paramount.
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Jaguar XJ 4.0 Exhaust System / Jaguar XJ Exhaust Mufflers 1998 – 2003
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+44 (0) 1789 774444
