Piston Dump Valve (Atmospheric / Noisy) is designed to fit directly in place of any standard factory 25mm plastic valves.
The dump valve can be fully adjusted to suit your specific boost pressure / application. This valve is rated to 2.0 Bar / 30 Psi at full adjustment, so is more than capable for most 25mm applications.
Atmospheric (Noisy)
Inlet Connection 25mm
Fully Adjustable To Cover All 25mm Applications
Compact Design For Stock Location/Fitment
Material Type: Aluminum
Color: Black
Inlet Connection: 25mm 
Package included:
-1x Blow Off Valve
-2x flanges
-2x bolts
-2x gaskets
Application:
Universal - Fits All Turbo/Supercharged Diesel Vehicles
Fit For VW AUDI SKODA & SEAT 1.8T engines.
For PORSCHE 993 & 996 Turbos,
For SAAB 9-3 & 9-5 Turbos, 
For FORD Focus RS Mark 1.
Universal fit all turbo application with 25mm Connections.
* Professional Installation Highly Recommended! No instructions included! * 
Brand New In Box & Ready To Ship In The Same Day
Same As The Picture Shown & Quality Guarantee
Our customers around the world.