Doing a 100 wet shot on my HR and going to be changing out to a 1 range colder plug. I ran copper plugs on my last car with a s/c but i was having to change plugs every 6-7k miles. Are nitrous guys running copper plugs and doing the same thing? Best recommendation for a good, overall plug that'll be in a daily driver, with very occasional nitrous use?

 

Try NGK PFLR6A-11

 

I use these (2 step colder) for my 100 shot past 2 years.. Probably time to swap them out.

 

Nice! 2 years is pretty damn good. How often you spraying?