Will this bolt up using my factory hangers and mounting points?

Yes. This catback is designed to use OEM mounting points—no drilling, welding, or chassis modification needed. Inspect rubber hangers for wear before install; replace if cracked.

Do I need to get under the car to pull the factory muffler first?

You'll need basic access to disconnect the factory system at the flex joint or intermediate pipe and remove the OEM muffler. Standard jack and jack stands required; no special tools beyond what most DIYers have on hand.

What condition is the stainless steel in when it ships?

The system ships ready to install—no polishing or prep work required out of the box. Stainless will develop a patina over time; polish occasionally if you want to restore mirror finish.