only time will tell on durability of any of these new manifolds
wonder what guarantee will be offered.
the other unknown option is JBS's cast k04 manifold. Their k03 one is a quality casting, which on my wifes 1.8t lupo was reliable unlike so many "other" hi flow manifolds.
cost = unknown - region Ł450 inc vat
reliability = too early to tell, but good if k03 one is anything to go by
Warranty = unknown.