First post....I am considering an X5 with the 4.4L, but I know that I wouldn't be satisfied with stock power....what F/I options are available for the X5?

Ideally I would like a roots-style (i.e. Eaton) or twin-screw (i.e. Lysolm) supercharger because of the (1) clean install, (2) longevity, and (3) off-idle boost, but I would consider a turbo if the manufacturer was solid.

Thanks.

RMS and ESS has Vortec supercharger kits for the X5.