Picked up my new Tial waste gate valves from Svensk Turboservice yesterday. They came straight from the Tial assembly line in the USA.
Worth waiting for! They are the new, upprated version with integrated water cooling.
How small are they? I compared them with the earlier bolt on 38mm Tial WG and I can tell you. They are very small! Good! Since I do a twin installation and there isn't much space to talk about.
MV-S V2.0
This revamp features water cooling ports, three bottom air ports and two top air ports. Water ports are not required for operation, but come in handy at road racing, the top hat is close to the turbine housing/down pipe or when the engine bay doesn't get a lot of airflow. Air and Water ports are clearly marked so there is no confusion.
(mine are silver/aluminum coloured).