Does this bolt to the factory mid-pipe, or do I need a complete system?

This axleback bolts directly to your factory mid-pipe at the rear axle — no cutting or welding required. Your existing mid-pipe and catalytic converter stay in place.

Will I need to weld this on, or does it use clamps?

Mounting method is not specified — confirm clamp or flange design before purchase. Bring your current exhaust dimensions to a local shop if you're unsure about fitment at the connection point.

Do the tips need polishing or does the stainless come ready to go?

Stainless steel will oxidize slightly over time and may benefit from occasional polishing to keep that mirror finish. Out of the box they'll have a bright stainless look, but don't expect them to stay showroom-polished without maintenance.