Nytro Exhaust manifolds holding up with turbos

[Triplerev]

Was wondering how the Nytro exhaust manifolds are holding up with a turbo set up. Is there any aftermarket ones out there?

 

[herby]

had one go on a s/c'd sled. couldn't find anyone that had one in stock, co i made one using the stock ends and a piece of steel flex pipe. worked for a couple days, then the stock one came in so i changed it. never heard anything about aftermarket ones.