truck blew real clean yesterday but failed the "visual" due to no smog pump. Guess owner before me took it off and I didn't pay any attention to the fact that it needed one till now. My question is, The headers on the truck are new, don't want to spend another 400-500 dollars for chevy exhaust manifolds, if I was to get a smog pump, diverter valve set up could I run the air tube into a welded on pipe into my Y-pipe right before the CAT? Much like a ford mustang 5.0 set up? I have a CAT and heard they foul real fast without a a.i.r pump set up. Anyone have any ideas or solutions?