[Roadster]

Originally Posted by ssrszz4

So what plugs did you put back in?

Sent from my XT1585 using ZR-1 Net Registry mobile app

Not any yet.....but either tomorrow or tomorrow night these will be going in.
NGK 3690 Iridium IX Spark Plugs (TR7IX)
Went with Hib's recommendation of going two colder ranges than the stock range which may be too hot for our engines.