I removed all this crap from my Corvette today:
The air tube going across the front of the engine was a PITA to remove. But I was persistent. I had to remove the fan, the fuel lines, pull the A/C forward, and remove the water pump pulley to get to it (in addition to all the other crap on top of that.)
The smog pump had 6 teflon pieces inside the walls of the rotor (not pictured), that the fins slide against when turning. If you break the fins out, but don't remove these pieces, they can potentially come out, or jam, or rattle and make more noise than it did to begin with. And they're a pain to remove. Save the hassle and buy a smog pump eliminator pulley kit.
Here's the engine afterwards:
You can see here that I used 1/2" stainless steel caps to plug the air injection lines on the ported headers. (Those are FACTORY headers by the way!) I didn't bother blocking off the smog pump outlet, since it no longer pumps air with the fins removed. I also pulled the AIR line to the cat. I plugged the hole with a fine thread bolt of the correct size, and some Copper RTV.
I plan on replacing the catalytic converter with a test pipe, or just getting whole new exhaust, (when I land a job.) I haven't pulled anything off that I can't put back on. When I have to smog it next year, I'll try a pretest with the smog stuff off to see if I pass. I might even sneak past the visual if the tech isn't up to snuff. Worst case scenario, I have to spend a few hours bolting that box of crap back onto it! :auto: