Hey guys I just bought another GM truck. It is a 2000 GMC Sierra 4x4. It was originally sold in TX so it doesn't have the correct smog crap for Cali. Do you guys know what parts I need to convert it over to pass Cali emissions testing?

Also the guy I bought it from said it might need a sticker under the hood to pass as well. I didn't know what he was talking about.

Thanks