Do I need gasket sealer or clamps for installation?

Hardware and gaskets are not confirmed in the product specs. Before installation, inspect the factory connection points and have OEM gaskets and band clamps on hand—you'll likely need them to seal the connection from the cat converter to the new system.

Will this fit if I've modified my stock exhaust?

This system bolts at factory mounting points. If your cat converter or hangers have been altered, you may need custom brackets or spacers. Test-fit the system before finalizing fastening method.

Does the burnt tip come pre-discolored, or will it develop that patina over time?

The burnt tip finish is applied at assembly. Over time, exhaust heat will deepen and vary the coloring, but it arrives with the heat-treated appearance already set.