Leaning towards ER10S for Vortex going on my R in the next month. I've been on ER12S on E40 EQT tune on the stock IS38 and they have been fine/no issues. I know EQT is all about the NGK Race plugs, but don't really want to throw down the $ on that piece of the puzzle. (already over budget as is on Vortex upgrade)
I'm initially going just 91 pump EQT tune here in Denver on the Vortex (std housing), so no LPFP upgrade at this time. (that's on the next tranche of this current money pit excursion)
Any better/similar plug than the ER10S I should consider if I don't want to go with those NGKs?
I'm initially going just 91 pump EQT tune here in Denver on the Vortex (std housing), so no LPFP upgrade at this time. (that's on the next tranche of this current money pit excursion)
Any better/similar plug than the ER10S I should consider if I don't want to go with those NGKs?