Steve, most of us have switched to the BR10EIX - iridium plugs; however, they require a slight modification to "eyebrows" over the plug holes and a modified socket to fit over the plug and into the recess hole.
Jeff

Hi Guys

Can you remind me what plugs you guys are running in Renesis engines?

Thanks

Steve Izett
Glasair Super IIRG Renesis 4 Port EC3 EM3 RD1C