Will this header require new gaskets?

Yes—use fresh header gaskets when installing. Reusing old gaskets often leads to leaks around the mounting flange.

Do I need to use high-temp paint or coating?

Not necessary. Stainless steel won't rust bare, so coating is optional based on appearance preference. If you want a finished look, ceramic or high-temp paint works.

What tools do I need to install this?

Standard socket and wrench set, jack and jack stands, and a gasket scraper. Refer to your vehicle's service manual for torque specs and removal order.