I think a chain reaction started with the Boschs a while ago and since than I think everyone will vouch for these plugs. But honestly get Autolites or NGK's proven and there very durable. You don't see Autolite or NGK putting 4 electrodes on there plugs just so that they can attract buyers, you see when someone sees 4 they think woohoooo.
I say don't fall for it and save your money at the same time. I run Autolite Double Plats and they do the job intended, thats what u want.
In fact I think if you get Autolites Double Plats they have a rebate program, a $1.00 returned per plug check with your local auto parts store.....
