Greetings, I wanted to have some advice, with my current modifications in the car I would like to install other spark plugs, after reading a lot I think that the NGK iridium BKR7EIX would be a good option. slightly colder than the original, I currently have about 280hp. I think that the BKR8EIX would be an unsuitable choice because they are too cold, what do you think? thanks
