Here's where were at......
 

Just picked my 04' Ram, got all service reports except when the plugs were changed.....recommendations on a good performance plug?

Stick with stock Champion copper core plugs.

Whatever the manufacturer recommends.

We're not just saying stay with champion to be lamers...the coils in our trucks are very strong and will melt platinum off of "performance" plugs, and the Hemi having 16 plugs instead of 8 also further helps burn off excess emissions. Lucky for us you can get all 16 champion plugs for still less money than most platinum "performance" 8 pack of plugs.

Make sure the gap is 45 thousandths and you're set to go!. If you have an air ratchet you can zip the coils & plugs off in no time.

The cheapest copper champions is what it requires. Never been a fan of NGK (decent but overrated), but then again I've been lucky to never have problems with spark plugs that haven't been installed in a Snowmobile or have flooded.


If you find problems with Champions that are properly gapped then you probably find "problems" with most gas stations you get gas from too.

As said, stay stock coppers. Lots of threads on this forum advising the same for over ten years, now. There's a reason for that.