Anyone used these headers?

[aknovaman]

Be aware the head flanges are actually Nickel plated plain steel. Other than that, they are fine. I have run them on several applications for over 5 years without issue in rain snow salt and mud in worse case situations.
So imo, they are fine and much better durability over plain steel painted headers of the past. Are they for every application or person, no. Will they burn your care to the ground or cause cancer in your goldfish, unlikely but To each their own.