Description
- CNC machine body and internals
- Tuneable, for different boost pressures
- Serviceable, for lifetime use
- Easy Fit, full step by step installation instructions provided
- Utilising world leading springs for more precise operation and consistency
- Assembled with heat stabilised Viton O rings
- Lubricated with Mobil 1 high temp grease
- Covered by the unique Forge Lifetime Warranty *
This recirculating valve is a direct replacement for the OEM valve but offering a level of reliability that is second to none!The vacuum nipple is position is angled making the upgrade/replacement seamless. We take pride in producing valves that have significant advantages over to original equipment: the body and internals are machined in our workshop in Gloucester, UK. They are then hand polished or anodised black for the stealthy appearance.
If stealthy isn’t your style and you want the infamous dump valve noise, take a look at our atmospheric version: FMDVK04SA
Please note for Porsche 997 Generation 1, x2 FMDVK04S’s are required.
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