Do I need gaskets or any mounting hardware to install these?

Headers ship as the core assembly. Grab quality header gaskets and use the factory bolt holes—no extra hardware needed beyond what you'd use for a stock manifold swap.

Will these headers fit my engine without clearance issues?

Long tubes are designed around factory engine bay geometry for these trucks. Test-fit before final tightening to confirm steering linkage and suspension clearance on your specific setup.

Can I paint these or do they need any prep before install?

Stainless steel doesn't need primer or paint—it stays bare and won't rust. Install as-is if you like the raw look, or clean and apply header wrap or ceramic coating for heat management and aesthetics.