Will I need new gaskets or fasteners to install this?

Yes. Use fresh header gaskets rated for stainless steel and new bolts when you pull the old manifold. Reused gaskets will leak.

Do I need to tune the car after installing the header?

The header alone won't throw a check engine light, but a dyno tune will unlock the flow gains. Many owners pair this with a tune or tune file for best results.

Does this header need paint or heat wrap?

Stainless won't rust bare, so paint is cosmetic only. Heat wrap is optional—it protects underhood components and engine bay plastics from radiant heat if you run it hard.