I'm not sure about us all sticking them in an old A-series though.
http://www.autocar.co.uk/News/NewsArtic ... rs/259452/
Fancy new spark plug
Moderator: The Midas Forum Staff
Re: Fancy new spark plug
Looks like it could be handy for the turbo engine if it allows higher compression without pinking...there's bound to be a snag tho, in my opinion it sounds too good to be true for engines as old as the A series