I got a response from Bassani today:

"P/N 58156B3 is for the '96 Bronco, 351. It will replace the factory and
does have three bungs for the O2 sensors.

To be street legal they need to have an EO number from the government and
they do not. They are not guaranteed to pass a smog test. The pipes are
not sold as replacement parts for factory stock."


So what I get out of this is that it will work, but they didnt pay the money for the certification. Greystreak, you pass with no problems?? Sounds to me like I should too. My truck has 3 o2 sensors?? Ive never really looked for them. Maybe a typo? I thought they had two. Well its decision time, should i get it and hopefully pass (i have over 11 months to figure out how to lie to the inspection attendant if it doesnt work ), or deal with stock?