Good Points Peter... and glad to see you over here.
Does anyone know if there have ever been any aftermarket manifold's for the twins made in Japan or Australia. I'm fairly certain there haven't been any fabricated/made in the states.
For my red FD/street FD, I picked up a set of 99spec twins to put on. I have since picked up a set of 99spec turbo's with a blown oil seal that I'm pretty sure I'm going to have turned into BNR Stage III's and use. I talked to Bryan@BNR about doing a smaller primary/larger secondary set up with the 99's and he recommended against it. I also have spoken with Dan Chadwick about the 99spec vs. BNR stage III's. He runs the 99spec on his SM2/SSM race car. He recently drove one of his customers car with the stage III's after Dan had went through the car, rebuilt the engine, etc... and said he was really impressed with them. Not sure where I'm going with this. More just sharing information that I have acquired in my turbo search I guess.