🔌 Champion Copper Plus 446 Spark Plug: Long-lasting Performance in a Carton of 1 Review

Fits well. Just installed on my 2011 Dodge Ram 1500. What's the difference after replacing old worn out spark plugs? My plugs worked fine, but they lost some power because I put them in the bottom row. I replaced the bottom block with Champion Iridium 9055 connectors and left the Champion 446 Copper Plus connectors on the top row. The truck is running great now.

These champion spark plugs (16) are fitted to my 2014 Jeep Grand Cherokee. I have 42,000 miles and have noticed that my gas mileage has gone down. That's because the spark plugs need to be changed every 30,000, which doesn't make sense to me since all new cars run at least 75,000 miles away from that. The replacement was easy and my Hemi runs smoothly. Fuel economy improved by 2 mpg highway. Revain's price is fantastic and Champions are the only candles still made in the USA!

Amazing! These are great candles! There were dropouts and jerky idle times. The coils are well tested so I decided to start with the cheapest part of the ignition system. Replaced all 16 spark plugs with these copper ones and what a difference! Now the idle is calm, the large camshaft rumbles pleasantly and does not slow down when starting and accelerating. Went with copper spark plugs because copper is a better conductor and will spark hotter than any other type of spark plug. Copper might not