I absolutely have to stay emissions legal and keep my cat so what are my options for headers. I know long tubes are the best but I have heard it is almost impossible to keep them emissions legal. Are mid-lengths any better?? Is it even worth going to shortys??

 

The only "true" smog legal header is one that does not relocate the factory
catalytic(s). In the republic of CA the product must also have a CARB EO#
to be legal. Offerings from SLP, JBA, Edelbrock, and some others have EO#'s,
which are probably the most likely to get by a tough inspection.

 

As long as I can pass the sniffer I would be alright cuz I know of a shop that doesn't care about the visual.

 

My camaro passed the sniffer here with SLP midlengths, no AIR, no EGR and no cat.