Never installed. Rebuilt factory Eaton M112 supercharger with machined snout and fitted with smallest pulley possible. Fits XJR, XKR, S-Type-R, XF and Range Rover Supercharged. I have all the gaskets and seals required in a separate listing if you need them as well as other parts for the 4.2L. Free shipping with signature required due to the value of the item.