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boot; spark plugs

  1. 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...