This is a piston design recirculation valve that is a direct replacement for the original fitment. This valve gives greater longevity than the diaphragm valves (OEM) but also benefits from its ability to be fitted with different springs when the boost pressure has been increased or the engine has been modified. To ease installation the top or vacuum connection is angled.
Vehicle Fitment:
997.1 Porsche 911 Turbo
Includes:
1x FMDVK04S Valve
1x Uprated Yellow Spring
1x Forge Sticker
Features:
• Competition tested and used on many high performance Porsche’s
• Engineered for Performance and Guaranteed for life.
• Available in a black or alloy silver finish
Notes:
Please note: For Porsche 997 Generation 1, x2 of these FMDVK04S’s are required. 
