I have experiance with Berk and Fast intentions HFC's both produce gains and both are hit and miss with throwing a CEL. I have had both Berk and FI HFC's on my G37S and they are the same HFC's thaty are used for th Z
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Originally Posted by SAM@GTM
Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living .
Sam
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