Hi guys - not knowing much (enough) about cars, I wanted to find out if anyone knew anything about these "electric" superchargers that are selling on ebay:
http://cgi.ebay.com/ebaymotors/Porsche-911-944-928-Boxster-Supercharger-turbo_W0QQitemZ200018893476QQcmdZViewItem
It looks like its some sort of DC motorised system that pushes more air in like a little compressor - but doesn't use the engine's power to do so?
It seems too good to be true (these things usually are!) but I thought I would ask if anyone had tried one or knew anything about them
Kind regards