German Manufacturer Arden have created a bolt-on supercharger for the Range Rover, designed to be used without removing the engine from the vehicle. The supercharger adds an extra 80 horsepower, utilising a twin screw compressor to boost the horsepower to 550 and the torque to 140 Nm.

As yet there are no prices available, but keep an eye on http://www.arden.de for updates.