I agree,never noticed any difference,waste of money in my opinion.Quinlan said:I've read claims of better fuel economy and/or better throttle response with Iridiums. I have personally used them in a couple different sleds, and found no benefits what-so-ever.
I'm pretty sure you can get them either way. I have had BR9ES plugs with both a screw and solid terminal. I currently have a box of BR9EYA and they are screw terminal, not solid.arcticcatmatt said:You guys talking about fixed cap plugs.
You do not have to get iridium to get that. Just add EYA to the end of the PN.
Example - BR9ES has a screw top - BR9EYA is the same thing but has a solid top