Will this bolt straight to my factory catalytic converter?

Yes. This system connects at the cat outlet and uses the factory mounting points at the rear axle. Bolts directly on without modification.

Do I need to get this ceramic coated or painted before installation?

No. Stainless steel doesn't require any prep work. Install it as-is—it won't rust or fade.

What mounting hardware comes with this?

The system includes the necessary clamps and fasteners to connect to the cat converter and factory rear mounting points. Verify fitment before final tightening.