Professional help with aftermarket exhaust for 97 Honda Civic?
 

I recently purchased an aftermarket cat-back exhaust system for my 97 Honda Civic HX, made for a 96-00 Honda Civic When I recieved it, I realized that the first primary pipe has a 3-bolt flange, where as my stock exhaust is a 2-bolt flange. The aftermarket exhaust was shipped from a company in California, and I am in North Carolina. Could it possibly be made to comply with California emmissions or is it something completely different? Any suggestions!?