Special T25 turbine housing (T25-EWG-44) T25 inlet (manifold side), GT28 5-bolt outlet. (downpipe side) For use with Tial 44mm external wastegate. This housing flows like a full T3.
Fits T3/T4 stage III 76mm turbine wheel turbos. Allows full T3 flow but on T25 manifold. The .72 A/R is built to GT30R geometry so this A/R is comparable to one that is right in between a .63 and .82 A/R GT30R housing. Very cool!