FI HFC, Berk HFC, or Stillen HFC?
#19
No aftermarket cats are authorized for OBD-II cars in the State of Ca. with that said, if it will pass sniffer in any other state, it will pass in Cali. same federal test everywhere you go. you'll just fail the visual check here, if they go by the book. i personally got my HFC's installed at a SMOG place, they told me they could care less, as long as it'll pass emissions.
#20
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