Your best bet is to stick with the regular ones made by bosch or bmw. Don’t get the ones that are specially coated/high performance spark plugs, as they burn too hot and ultimately have decreased performance. Hope this helps.
Yep, I agree, do not waste the money on Iridium or Bosch +4. Just get some regular Bosch at any auto parts store. Funny thing is some of the Iridium ones like Denzo cost around 10 bucks a plug.......what a joke.
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