Quote:
Originally Posted by carlitosgomesm5
I ran mine with OEM plugs not gapped and had the car misfire. Back to stock car was fine. Installed NGKs gapped at 0.018" and all good now with stage 1 93 Beta and car works great.
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I still think this is related to your Octane in the US, in Germany we īve got 102 RON and all my Friends run with OEM plugs 750HP+