I picked up my cast manifold for $10. So with the flange weld that's far cheaper than a $1000 Full Race manifold. This is the best alternative, in my opinion, for those of you wanting to run an external gate on a T25/T28 flange style turbo, because you don't have to worry about those thin steel manifolds cracking over time. Sure it doesn't have the best flow characteristics, but regardless it's all funneling down to a small turbo exhaust blade on a T25/T28 style turbine. I'd rather sacrifice a few ponies, and have rock solid boost, than crossing my fingers on a tubular manifold, hoping it doesn't crack.

By the way, XAT does a great job with these flanges, so if your interested in adding an external gate, running your stock manifold, give them a call. Myself and a friend are both satisfied with the quality of the welding.

Here are some pictures of mine: