I also like stainless because i think they look better and they will last a lot longer granted if you buy the 700 dollar ones. But stainless steel does discolor when the header gets hot and ceramic doesnt.
Top 5 Reasons To Ceramic Coat Your Exhaust Headers And Turbo
Ceramic headers vs stainless steel. They are cheaper bc the steel in the header is not cheaper. Ceramic headers can maintain their out of the box chrome like appearance for many years and the smooth surface makes them easy to clean. Stainless will radiate more heat into the engine compartment than ceramic coated headers will. The underhood temps with coated headers will be noticeably cooler than with stainless headers which run just as hot as the factory manifolds but without the benefit of the factory tin heat sheilding. Ceramic is cheaper and once it wears out you could always sand the old off and reapply a ceramic coating to the headers. That is why they rust.
The ceramic actually blocks alot of the heat if they are coated inside and out. Neither stainless or ceramic materials corrode so youll never have to worry about rust. I had ceramic they were light thats a plus but that bitch cracked on me after 2 years. Stainless pipes will blue on you from the extreme heat. Also since the heat is staying inside the headers the exhaust gases will be hotter and will flow more remember as air cools it becomes more dense. A full stainless header will not rust at all.
Ceramic coated headers are not stainless. Some people do not like the coloration or bluing of these pipes. A ceramic coated stainless header would be the ideal setup if money aint a thang. Stainless is heavier but more durable ceramic is lighter and prettier.