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
Jaguar XJR4.2 Catalytic Converters (Pair) Upgraded Performance Jaguar XJ Catalytic Converters 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 XJR 4.2 Catalytic Converters . These Jaguar XJR and XJ 4.2 Catalytic Converters and racing cats are integrated into a large bore downpipe, they reduce back pressure substantially and increase flow rates, they are particularly effective on Jaguar Supercharged engines, and when combined with other Paramount Performance parts can push the Jaguar 4.2 XJR past 500bhp. Emission levels remain fully road and MOT legal. Jaguar XJR 4.2 Catalytic Converters Performance Hi-flow Sports Cats work exceptionally well on re-mapped (chip tuned) engines. Power increase 22-25 bhp in the mid range, giving a nice boost to throttle and midrange power . £2,150.00 -
Jaguar XKR / XJR 4.2 Catalytic Converters 200 cell
Jaguar XKR 4.2 Catalytic Converters (Pair) Upgraded Performance Jaguar XK and XJR Catalytic Converters
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 .
These Jaguar XKR 4.2 Catalytic Converters and racing cats are integrated into a large bore downpipe, they reduce back pressure substantially and increase flow rates, they are particularly effective on Jaguar Supercharged engines, and when combined with other Paramount Performance parts can push the Jaguar 4.2 XKR past 500bhp. Emission levels remain fully road and MOT legal.
Jaguar XKR 4.2 Catalytic Converters Performance Hi-flow Sports Cats work exceptionally well on re-mapped (chip tuned) engines. Power increase 22-25 bhp in the midrange.
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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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Jaguar 4.2 XJR Supercharger Pulley – Upgraded Supercharger Pulley
Jaguar 4.2 XJR Supercharger Pulley – Upgraded Supercharger Pulley
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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Paramount can tune your software to the exact same level as Jaguar use on the original F type exhaust software, burble activation and growl on overrun and between gear changes
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Have your Jaguar set up and tuned the way you want it, not the way it comes.
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Jaguar XJ V12 Exhaust Manifold Headers set of 4
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High-grade stainless steel Jaguar XJ V12 exhaust system manifold and JaguarXJ V12 headers made to order in original factory style.
Paramount offer an unrivalled range of classic Jaguar XJ V12 mufflers, headers and exhaust manifolds for the complete range of Jaguar cars, including the Jaguar XJ V12 manifolds and Jaguar XJ headers.
All of our Jaguar XJ V12 exhaust manifolds and Jaguar XJ headers come with a lifetime corrosion warranty too
Exhaust Systems and Jaguar headers and Jaguar manifolds for most Jaguar cars, if you are not sure, or if you don’t see what you are looking for please e-mail us – we are here to help.
Paramount the home of the Classic Jaguar performance exhaust manifolds and headers.
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Jaguar XK de-cat pipes, catalytic delete pipes
Jaguar XK De-cat Catalytic Converter delete pipes (with software option)
If you choose to remove and delete the catalytic converters from your Jaguar XK – Jaguar De-cat Paramount is unique in that this service can be offered. High grade stainless steel Jaguar De-cat pipes are available to remove the catalytic converter from your car completely.
In addition Paramount can offer Jaguar De-cat software to deactivate the warning lamps associated with Jaguar – De-cat and removing the catalytic converters from your car. The De-cat software can be installed or loaded on to the Paramount DIY home installation tuning system – so you can deactivate your jaguar catalytic converters without coming into the Paramount workshops
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Jaguar XJR Gearbox Tuning TUC
JAGUAR XJR AUTO GEARBOX TUNING – TCU TUNING
NEW XJR JAGUAR GEARBOX TUNING
Paramount Jaguar XJR gearbox tuning is available both at our Uk workshops and also mail order with our gearbox tuning upload device – so you can tune your own Jaguar gearbox any time anywhere
All Jaguar 8 Speed automatic vehicles are supported by Paramount’s gearbox tuning services
Delivering a super-fast, super-smooth gear change and a very distinct advantage in reducing 0-6 times, ¼ mile time and speed
On the V8 Jaguar, the gearbox tuning will deliver around a 0.2-second improvement on stock performance on ¼ mile, and faster speed achieved on the ¼ mile, with an improvement of approx. 6-8 mph
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