JJD1010 at aol.com skrev: > _http://www.preignitioncc.com/ps/index.htm_ > (http://www.preignitioncc.com/ps/index.htm) > > And how about this one. Both this and the plugs you mentioned earlier has "gimmick" designed to increase gas mileage by lightening your wallet written all over it IMHO. > > Jeff > 6559 > Cheers, Thomas