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  • Jaguar XJ V12 Exhaust Manifold Headers long

    Jaguar XJ V12 Exhaust Manifold and Jaguar XJ V12 Exhaust Headers – long performance headers   

    High graded stainless steel Jaguar XJ V12 headers and manifolds, performance long tail manifolds – hand made to order in the UK 

    Paramounts Jaguar XJ V12 exhaust manifolds and headers have a life time corrosion warranty.  

    Paramount the home of the classic Jaguar XJ V12 performance exhaust manifolds and headers, mail order with worldwide shipping and tax free to many locations. Uk fitting service and Jaguar V12 restoration service available 

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  • Jaguar XJ 4.0 Exhaust System / Jaguar XJ Exhaust Mufflers 1998 – 2003

    Jaguar XJ 4.0 Exhaust System / Jaguar XJR Exhaust Mufflers 4.0

    High grade stainless steel Jaguar XJ exhaust system exhaust and Jaguar XJ mufflers made to order. Paramount offer an unrivalled range of Jaguar XJR and XJ tuning parts, Jaguar exhaust systems and exhaust mufflers for the complete range of Jaguar cars, including the Jaguar XJR and XJ exhaust system.   

    The Jaguar XJ exhaust system sound, look, finish can all be custom tailored for the desired result, all of our Jaguar XJ exhaust systems come with a life time corrosion warranty too 

    Performance and stainless steel Jaguar XJ exhaust systems and Jaguar XJ mufflers are available for all Jaguar cars and models 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 custom performance Jaguar XJexhaust system, Jaguar XJ exhaust mufflers and Jaguar XJR tuning parts   




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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

    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 4.2 Remapping & Tuning

    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

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