Hey there.. I was just asking cuz 1.) they're black like the NR plugs, and 2.) with the Fire 11 for ex., RMV Germany was recommending running an OS P3 if you run Tornado fuel. I.e. you need a hotter plug. Then here all these guys were recommending the NR C5TGC for the F11.. And then RB comes out with a new plug range that looks like the NR plugs people say work so well with the RB's.. Etc..
The new RB Fire is available for sale here now btw.. Tempted, but yeah, haven't even gotten any fuel through my first one yet ha ha...