'86 Bronco 300 i6 engine smog equipment?

Hey. Just bought my first classic vehicle which happens to be a 1986 Bronco with the inline 6 engine. Major issue is tho, the previous owner had the smog equipment removed, and I live in California. Googling doesn't help because all I get is guides on how to remove the smog equipment, but not how to install it or where to buy it. Can anyone suggest any resources?