Toyota actually put out two different CT26 turbos to be as confusing as possible. The 7MGTE Supra one (which I have one of) and the 3SGTE MR2 one, which has a dual scroll turbine housing and matching turbine, which is drastically more restrictive than the Supra unit. To my knowledge, both use the same center section, compressor wheel and compressor housing though. Also a common mod for guys using the Supra one is swapping the compressor housing and wheel for an aftermarket 60-1 pair.