Spark plugs

[shadypr86]

Have 2008 cooper s looking to change plugs looking for top 3 plugs that improves performance and last. Thx

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[bluefox280]

Are you looking for the same heat range, or are you needing a step colder due to serious engine modifications that increase boost pressure?
What electrode core do you prefer: Cooper, Iridium or Platinum?

- Erik

[ECSTuning]

My cooper guy says the NKGs found HERE (http://www.ecstuning.com/ES2011164/?salesrep=JRiggsbee&utm_source=bimmerforums&utm_medium=forum&utm_content=JRiggsbee&utm_campaign=postreply) are the go to plug for the not heavily heavily modded cooper s.

ECS Tuning

http://c1552172.r72.cf0.rackcdn.com/145803_x300.jpghttp://c1552172.r72.cf0.rackcdn.com/145806_x300.jpg (http://www.ecstuning.com/ES2011164/?salesrep=JRiggsbee&utm_source=bimmerforums&utm_medium=forum&utm_content=JRiggsbee&utm_campaign=postreply)