Do I need new gaskets or clamps to install this?

Mounting hardware and gaskets are not included with this system. You'll need to source OEM or quality aftermarket gaskets for the manifold flange connection and grab the appropriate clamps for any intermediate piping work.

Can I keep the factory catalytic converter?

Yes. This is a catback system, meaning it connects downstream of your existing cat. Your factory emissions equipment stays in place and functional.

Will this require welding or cutting?

This system is designed as a bolt-on replacement. No cutting or welding should be necessary if fitment is correct, but test-fit before final assembly to confirm alignment with your specific vehicle's undercarriage.