Man I have to tell you, if it's not one thing it's another with this car. I want to buy a C.A.R.B legal header (the one I have is illegal) , however I keep running into this issue. Every C.A.R.B legal header I see for a 02 Civic is for the EX model and not the LX model. Has someone ever had this issue with this model, and can someone please tell me where I can buy this legal header? Thanks so much.

 

You could do an ex exhaust swap....

 

Your idea sounds pretty good, but what would I do with the two sensors that are supposed to be connected to the stock exhaust manifold? I just dont want to fail a visual inspection if I ever get pulled over or have to do a smog. The EX has a catalytic converter running thru the exhaust piping under the car. Does that mean I should by a C.A.R.B legal catalytic converter, but where can those sensors go. There is only one space for it and two sensors.

 

There is a sticky in this section about EX exhaust conversion but it's for 6th gen civics. I'm not sure what the differences are between 7th and 6th gen exhaust conversions but it might be worth a look for informational purposes.