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Are the Z1 HFC back in stock? Do they cause a CEL and will I need those extensions? I've noticed other HFC use a J-bend anti-fouler setup. Looking to match something up with my F.I. cat back and noticed F.I. also uses a 300 cell metallic core HFC.
Are the Z1 HFC back in stock? Do they cause a CEL and will I need those extensions? I've noticed other HFC use a J-bend anti-fouler setup. Looking to match something up with my F.I. cat back and noticed F.I. also uses a 300 cell metallic core HFC.