Have an Honda Civic 1.7 l ex biought this three years ago at a used dealer in AZ. I have since had the vehicle thru emission twice in AZ with no problems. We moved here and |I find opu thtat the exhaust manifol is not approved for the year of my civic. It is for an 01 but not an 03. Now I know that stock exhaust form 01 to 05 are interchangeable why this discrepancy. I have an appt on |Monday with the |SMOG |Ref to see if this cna be worked out. Need to have some evidence for them to approve this waiver. The estimated cost for goping back to a stock system in $790.