Spark plug Champion or OEM BMW

Champions quiet redesign of their plugs to match Tempest made up my mind. It matters, and Champion is just trying to save face.

Guy was gunna charge me $720 USD for changing my serp belt and another $550 USD for changing just my spark plugs. That's $20 for the serpantine/drive belt, $150 for the belt tensioner and I think another like $120ish for spark plugs (B58 engine). So in total I saved myself roughly $1,000 just doing it myself.

I always run champion platinum in the coil rail 4.0s. Sometimes engines are particular.

You can get the champion version of the RS7 plugs for less than $20 a plug and they’re working great on my car!

These were actually alright spark plugs. The ceramic is a lot tougher than normal ceramic, and the electrode is larger. They were marketed as 'truck plugs', but they're really good in old tractors and farm equipment. They last forever.

I once had to use 99 cent Champion plugs in my car for a few months when I was flat broke. They worked fine but didn't last long.

Avoid Champions. Use NGK or Denso. Don't go cheap on plugs because the job is labour intensive.

Side note, Champion spark plugs suck. Use them in lawn mowers.

Champion is shit for cars. Leave it for mowers and weed eaters.

I would return them and get Motorcraft anyway. Champion is garbage.