A High Flow vacuum operated twin piston valve for the Audi S3 (8P model). Designed primarily to ensure that high volumes are discharged quickly, this valve can be configured as either a recirculation valve or a blow off valve. Everything required for the installed is supplied along with comprehensive instructions, which are available to download here.
We can offer the silicone hose in a choice of Red, Blue or Black, simply state your choice when ordering.