Do I need to remove the catalytic converter to install this?

No. This catback system bolts directly to your existing catalytic converter. The connection point is where the original exhaust meets the cat — no removal or modifications needed there.

What fasteners do I need to hang this system?

Mounting hardware is not included with this exhaust. You'll need to source hangers and clamps compatible with your vehicle's suspension and frame points — your local hardware store or a Toyota/Honda parts supplier can help you match the right sizes.

Can I install this myself with basic hand tools?

Yes. You'll need a jack, jack stands, a wrench set, and a way to support the system as you remove the factory exhaust and slide the new one into place. If you're comfortable working under the car, this is a weekend job — no welding required.