Do I need new exhaust gaskets when installing this header?

Yes. The factory gaskets are typically single-use and won't seal properly when removed. Grab a new set rated for stainless headers before you bolt it up.

Will I need to adjust anything on my vehicle after installation?

Your oxygen sensors remain in their factory locations. Some builders use the H-pipe's secondary port as a crossover point—verify clearance to your frame and shifter linkage before final tightening.

What condition is this header in—bare or ceramic coated?

This ships as bare stainless steel. You have the option to ceramic coat it for heat management, prime and paint it, or leave it raw. Bare stainless will patina over time but won't rust.