Will this bolt directly to the factory catalytic converter?

Yes. This catback connects at the converter outlet and uses factory mounting locations. You'll want to verify fitment during installation before finalizing any connections.

Does the stainless steel need any surface prep or coating before install?

Stainless steel is ready to install as-is. If you plan to polish or coat it for appearance, handle that before mounting to avoid damage during installation.

What hardware comes with this exhaust?

The assembly includes all necessary components to connect to the catalytic converter and factory mounting points. Confirm gaskets and clamps are present before starting installation.