Quote Originally Posted by 1JZ_Type-S View Post
Interesting. I've been running the NGK BKR9EIX's for a couple years & never gapped them. I assumed that for boost levels between 12-15 psi, the factory gap was good. Should I regap my next set of plugs?
I read somewhere either on here or k20a. They say .028-.030 low boost settings and .022-.025 high boost. I running it at .025 at like 14psi right now and its fine.