So im going to buy a aftermarket header soon for my 01 zx3, i was jw what kinds you can still get shipped to california and are smog legal, if any. If none are legal what ones are easy to install and uninstall so i can take them off when i go to smog the car? I was thinking a aftermarket shorty header would be best such as the pacesetter headers, etc. However i wish i could run a long tube header, how easy are long tube headers to install and uninstall? when u remove the stock exhaust manifold does it just bolt off somewhere, or do u have to cut it off? jw since i would be wanting to be able to reinstall my stock header when i go to smog, if i get a long tube header? please any answers will help, and a list of shorty, and race headers and explanation of how to install them and differences would be nice, and also lmk if they are smog legal, thank you.