Quote:
Originally Posted by mariosg37
Own a G37 and want to put on Stillen Headers along with HFC. Stillen was recommending against it due to heat and running lean. Anyone on the forum running headers and HFC?
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I don't see the point into all the time and hassle of installing nice free flowing headers, only to get chocked up by HFC's. Test pipes or nothing. If you're absolutely set on HFCs, I would just stick with the stock headers.
And have you looked at the Z1 headers?