Re: Exhaust system upgrade/cleanup
I have Hooker headers and their plumbing kit. I have zero emissions except the vapor collection system which has been limited to only sucking vapor out of the gas tank (not from the air cleaner like they do stock).
In other words, I have a non-APT quadrajet, no ESC, no AIR, no catalytic converters, no EGR... blah blah blah. If it's not essential it has been eliminated including the various temperature-controlled vacuum switches for the AIR, EGR, and torque converter lockup. Some things, like the vapor collection system, have no business being removed.
Would it pass emissions? Probably, depending on how stringent they are. There is no way it'd pass if it required you to do it with a cold motor. Would it pass visual inspection? No freaking way.