Hey guys, i was watching Horse Power this morning and they were talking about those E 3 spark plugs with diamond fire technology, looked them up and dam near ****, is spending almost $180 worth it for them bad boooys, or as been sujested on hear by some just stay with good ol Champions or NKG or NGK or what ever, im confused, some say certain plugs dont mix well with the 04 hemi, all help and info is appreaciated, Brian Lee

 

There is a thread on here somewhere about all the trouble you can get into using different plugs,I would stick to the OEM reccomendation.

 

Those are paid advertisements stuck into the show. https://dodgeforum.com/forum/3rd-gen...rtisement.html Waste of money. Use copper plugs as you mentioned in your original post and change them as recommended (30K miles) and it will run it's best.
I just tuned up a friend mom's Focus. Has a miss under load. Pulled the plugs and it had those crappy Bosch platinum +4 plugs in it. They looked good, but that means nothing. I put a set of Motorcraft plugs back it is and it runs perfect.

 

Use NGK plats...has a copepr core like everyone raves about and the tip will last longer. Whatever you get make sure you gap them...don't use one of those cheap coin gappers either.

 

thanks guys it not only saves me $, but im learning the old stand bys are always safer and i like the NGKs thts all i run in my ol Polaris Indy Trail 440, next restor is a 81 IFS Indy 500 liquid tripple big block, good for 90-105 mph, thanks again for the sound advise and help, beer and peanuts for everyone BLB

 

Im getting close to a plug change and i think ill go with the NGKs as well.They are the only plug i ever had good luck with.Like Mopardad,NGKs are the only plug my Yamaha Viper will run.All others will foul on start up or shortly after.

 

put those in my 00 dodge durango r/t and never saw a bit of difference compared to stock or plat plugs. not worth the money.