Just found this "electronic supercharger" on the web > http://www.turbozet.com/http://www.turbozet.com/ Looks a bit dodgy - bit like that 20bhp increase on ebay!
Also found this > http://www.invoauto.co.uk/Products/Turbo%20Jet/turbo_jet.htmhttp://www.invoauto.co.uk/Products/Turbo%20Jet/turbo_jet.htm . Seems to make sense but would it really work?
Opinions/experiences on a stamped addressed envelope....