Do I need to remove or replace the catalytic converter?

No. This catback system bolts directly to your factory catalytic converter. Your OEM cat stays in place and functioning normally.

What hardware do I need to install this?

Mounting hardware is not specified in the product data. Verify all fasteners before installation — you may need stainless bolts and clamps rated for exhaust heat. Refer to your vehicle's service manual for torque specs and fastener sizes.

Will I need to do any welding or cutting?

No welding or cutting required. This is a true bolt-on system that connects at the cat and exits at the rear bumper using factory mounting points.