Designed with a two-piece Billet dome made from 6061 aluminum, and a black anodized finish.
The piston inside replaces the conventional diaphragm, which is a two-piece serviceable part.  We pressure-tested and rated it for 150 psi working pressure.
On our piston we use a viton O-ring, and we include spares. We use a nominal O-ring size, so if you have any mishaps replacements are easy.
The wastegate valve is constructed from a super alloy mix to handle the hottest and harshest conditions your engine can throw at it. We also use this alloy mix to ensure fuels don't corrode the valve.
All reference ports are 1/8 inch npt.
Body is casted from stainless steel.
 
What's Included! 
Stainless inlet and outlet flanges
Stainless clamps with hardware
(3pcs) spring kit (approximate ratings for 5psi , 7psi and 14psi with a combined capability approximating 26psi depending on application)
Spare O-Rings
(2pcs) 1/8npt Stainless Barbs
(2pcs) 1/8npt Stainless Plugs