Not answering the question directly, here in Maricopa County, Arizona, we have smog tests on the bikes. Visual inspection for the smog equipment (like they can tell if the plumbing is actually serviceable), and the not-so-bright folks at the station don't realize what an aftermarket exhaust means for a catcon. For the consumption of the ones who do know what that means, it's a good idea to keep your stock exhaust (and not junk or eBay it) for the annual smog check.
Anyway, the bike has to make the numbers at idle, or failing that, at 2000 RPM. They don't dyno the bikes like they do cars in AZ, so it's in neutral.
I bet Ebbs15 that his 48-state bike will pass the inspection in Cali, and that you can easily control the pilot screws to pass at idle if you must get the bike sniffed in any state. I further bet the Provost Marshal has a contingency plan in case his bike doesn't pass Cali emissions with an Oregon plate.