General Magnum Discussion
I changed the plugs on my 2007 R/T 5.7 liter; it has 38K miles.
I decided on the Champion 5750 double platinum; downside is that they are $4 each instead of $1.50 for the copper 750, but I figure they will last 100K miles.
The electrodes and ground straps on the old plugs looked pretty good...