Will this fit in my tight engine bay without hitting accessories?

Block hugger design sits tight to the block, but test-fit in your specific bay before final installation. Clearance depends on your intake manifold, alternator bracket, and other ancillaries.

Do I need new studs or gaskets to install these?

You'll need header gaskets and studs to match your LSX block configuration. Mounting hardware is not included—check your engine's manual for the correct bolt pattern and torque specs.

Can I run these raw stainless or do they need to be coated?

Stainless steel resists discoloration on its own and can be run bare. If you want to minimize heat soak into the bay, ceramic or metallic coating is an option—but not required.