I was just randomly thinking about upgrading the spark plugs in my car,
the ones in them I assume are new from the dealership, but I just want an upgrade.
I'm not looking to spend $70 on them,
so here are my 2 choices,


should I go with either of them?
Pros, cons? Just stick with what the dealer put in?

http://www.americanmuscle.com/ford-s...0710gt500.html

http://www.americanmuscle.com/ngk-pl...kplugs-v6.html

 

well you can't use the first link, unless you have the 500, but also those are the same POS spark plugs in there, thus the OEM or Original Equipment Manufacturer. don't know if the 6 models have the same stupid 2 piece plugs, but make sure when you do buy some buy ones that are 1 piece and when you take the original ones out be VERY CAREFUL if they are the 2 piece. I think there is a how to someone on here about the 2 piece plugs

 

I replaced my original spark plugs with NGK iridiums. Originals were 1 piece and the NGks were also 1 piece. Relatively easy removal except for cylinder 3. Make sure you gap them correctly. I forget what the gap size is supposed to be, but you can find it in your owner's manual.

 

Champion one piece

http://www.summitracing.com/parts/CPN-7989/

 

There isn't any need to spend a lot of money on plugs for the 4.0. The cheap plugs do fine, most go with the autolite 5143, even those with forced induction. I run the NGK TR6 plugs with my Xcharger, they cost me less than $2 a plug.

And we don't have the same plug problems that the GT has with the two piece plug. And simplexdesign is right that one plug is a PIA - none of them are particularly easy since you really are working blind for the most part and it is done by a lot of feel.

Gap them and put some anti-seize on the threads to make it easier next time.