need info on tr55 plugs. is anyone running them and do they work

 

seem to work fine for me.

 

I put some TR55's in when I did the cam swap. Don't really know much about them other than that's what everyone told me to go with. The TR55's are copper (vs. stock platinum) and are a heat range cooler I beleive.

 

I am also running the TR55's. I put them in with the idea of someday in the near future adding a S/C. Seem to work fine for me...