Do I need new gaskets or clamps when I install this?

You'll need to source gaskets where the system connects to the cat—those aren't included. Clamps and hangers are part of the assembly. Check fitment at the connection point before final torque.

Will this require any welding or cutting?

No welding needed. This is a true bolt-on system that connects directly to your factory catalytic converter. No cutting, no modifications to the vehicle.

Does this change how the car sounds?

You'll notice a more aggressive exhaust note—stainless catback systems open up flow compared to stock. The exact tone depends on your muffler design and resonator setup. If sound is critical, reach out with your specific goals.