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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.


    Paramount Performance home for your Jaguar Catalytic Converters and all your Jaguar tuning needs


    SKU: SKU175311111211 Categories: , , , ,
  • Jaguar XK 4.2 Exhaust System Exhaust Mufflers -LOUD Cat Back

    Jaguar XK 4.2 Exhaust System / Jaguar XK 4.2 Exhaust Mufflers – Full on Super Sports Full CAT BACK SYSTEM    

    All New Jaguar XK 4.2 Super Sports Exhaust System Paramount are very pleased to announce our brand new and exclusive Jaguar XK 4.2 Super Sport exhaust system, not for the faint hearted this Jaguar XK performance exhaust system has been specially designed and developed to be “full on motorsports”

    Click Here for a sound clip:


    SKU: SKU1775712 Categories: , , ,
  • Jaguar XK / XKR Exhaust 4.0 / 4.2 Exhaust System Rear boxes

    Jaguar XK / XKR Exhaust 4.0 / 4.2 Exhaust System Rear Boxes     

    A pair of lovely high grade stainless steel Jaguar XK and XKR rear exhaust boxes, if you are looking for a great deeper sound, but don want to splash out on a full stainless steel exhaust system these Jaguar XKR exhaust boxes are just the ticket. And if you want something with a deeper tone, we can also supply a pair of rear exhaust pipes without the rear silencing boxes, – not super loud, but certainly rather sporty and deep V8 roar on acceleration, but without drone while cruising.



    SKU: SKU1754811111 Categories: , , , ,
  • Jaguar XK / XKR Lowered Suspension Jaguar XK lowering springs 2006>

    Jaguar XK Lowering Springs – 35 mm Jaguar XK Lowering springs 2006 4.2 XK / XKR




    Jaguar XK Lowering springs are perfect for track day and every day road, these Jaguar XK lowering and handling springs dramatically improves both a vehicles performance and appearance, without introducing a “bone shaking” ride quality.




    Our jaguar XK lowering springs lower your Jaguar XK center of gravity reducing squat during acceleration and body roll when rendering




    Paramounts Jaguar XK lowering springs offer, Top-Performance Handling, lower center of gravity, and progressive spring design and function.




    Paramount Performance for all your Jaguar XK lowering springs, Jaguar tuning and performance exhaust systems.