Do I need new gaskets and fasteners to install this?

Header gaskets and header bolts are not included with this assembly. You'll need to source OEM or aftermarket gaskets and hardware separately — these wear out during removal anyway, so replacing them ensures a proper seal.

Does this bolt up to the factory catalytic converter?

This midpipe assembly is designed as a direct bolt-on replacement for the stock exhaust manifold and piping. Confirm the connection point matches your vehicle's existing downpipe or cat before finalizing your order.

What prep work is needed before installation?

Allow the engine to cool completely before unbolting the factory manifold. Clean the mounting surface on the cylinder head to remove old gasket material and debris — a clean surface prevents future leaks. Use a gasket scraper or soft brush; do not gouge the aluminum head.