That's entirely up to you. Budget conscious, go with some PS ceramic coated LT headers. If you want something better, and will probably last forever, get some Kooks, but you'll pay a pretty penny for them. I'd recommend the LPP's but I don't know if they are available again yet.
I have PS un-coated headers. They looked like **** after 30 mins when the paint burned off, and they will eventually rust, but that won't be for a couple of years, so I don't really care, got em for $250.