This appears to be a cheaper alternative for a tuning box. Has anyone tried one of the CR VRS. Impressive results if they can be believed and looks like they get some positive feedback on the Fabia MK2 Twin charged VRS.

 

. http://www.bluesparkautomotive.com/carspecs2?carid=5355

Wonder if its as good as it says. It is interesting in the way it works, whether its reliable in terms of protecting the cars components would be my concern. Seems to be pushing the CR a lot in terms of torque.