It was an Ashley competition manifold so straight off the shelf. If you look on the forums there are a lot of mixed reviews and opinions about Ashley products, but at the end of the day they are just a no-frills mild steel after-market upgrade. For the money the manifold itself is quite good value for money, but I just cant understand why they would apply a normal paint coating to their manifolds knowing that it will simply burn away? In fact it would have been better if they didn't paint it at all.
Anyway Zirotech who are doing the ceramic coating for me guarantee it so I shouldn't have to worry about it in future and obviously there will be an heat transfer/reduction advantage. Only problem is the ceramic coating costs almost as much as the manifold itself.