Audi B5 S4 Forge Diverter Valves
Stock diverter valves just can't handle performance upgrades. Add a little boost and they get all weak in the knees and blow the diaphragm to pieces.
Forge knows this. That's why they've engineered boost-hardy diverter valves tough enough to take the pressure without blowing their lids.
These are completely serviceable valves with an aluminum piston and o-ring seal, compared to the easily tearing rubber diaphragm found in the OEM valve.
Includes 3 different springs to fine tune the valve to your liking!
Forge Ahead
Fits:
Audi B5 S4 (2000-2002)