Whew! I passed CA emissions!
Thank you everyone for all your input. I failed my first time. Then I:
1. Put Seafoam in the tank; it actually seemed to show some performance results right away, it is pretty amazing;
2. I ran "Guaranteed to Pass" in a second tank of gas;
3. Cleaned my air filter;
4. Changed my oil;
5. Changed my fuel filter.
My car has 102K miles on it.
I was definitely all set to get a stock H-pipe to run it through.
This saved alot of time, money & hassle. It was definitely worth a try!