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Swallows Racing Stage 1 Package for Jagaur X300 XJR 4.0 S/C - sr00137


All Swallows Racing products utilise over 35 years experience in motorsport and are extensively tested on and of the track to ensure the maximum performance for you car with proven results.

Swallows Racing Stage 1 package consists of a 16% lower supercharger pulley, Gates super charger belt and a K&N panel filter. This is the perfect improvement to your 4.0 XJR6 supercharged format, by increasing the size of the pulley you are increasing the speed of the supercharger which translates more BHP and torque. Coupled with a less restrictive panel filter this then allows the car to breath freely and intern open up the capability of the XJR6.
Price including fitting please contact us.


Fitment requires removal of the old pulley and modification, this will show an increase in throttle response, torque and BHP

£599.00 includes Fitment.

X1 Supercharger pulley

Please call us for individual quotes

Warranty Options

In order to provide continuing peace of mind and support throughout the life of your Jaguar, we offer extended warranty packages to compliment our standard 3 month mechanical warranty.

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If you would prefer to purchase over the phone Call +44 (0)1934 750 319