Turbosmart Smart Port Dual Port 2.0L VAG BOV Volkswagen Golf R/Audi S3 - Black

The VAG Type 5 Smart Port Diverter Valve features innovative new drive-by-wire friendly staging technology. This eliminates compressor surge at both low throttle and high engine load while smoothly integrating with factory engine mapping. Plus a new hard-anodised, lightweight, aluminium piston provides better valve response and prolonged piston life.