[Mywifes335]

Originally Posted by ocN55

NGK iridiums all the way, check my post above. Try a step colder since you're FBO.

Are these the one-step colder plugs?

http://m.ebay.com/itm/121304513303?_mwBanner=1

With one step colder, does the car make less power or does it not affect output?

Thanks!