This unique blowoff valve has been specifically designed and manufactured for VAG 1.8 Turbo 20VT engines, to offer stable pressure without fluctuations across the entire RPM range, while simultaneously producing the well-known turbine discharge sound.

It is adjustable with 60 settings (clicks) for precise micrometric tuning at all improvement stages without any pressure loss.

The kit also includes additional components to convert the blowoff valve into a closed type.