FORGE recirculation dump valve for OPEL Astra or Corsa VRX

FORGE recirculation dump valve for OPEL Astra or Corsa VRX

Why install a dump valve?

A dump valve, or a blowoff valve, helps prevents compressor surges by allowing compressed air in the manifold to vent even when the throttle is closed.
This helps reduce wear on the turbocharger and on the compressor.
The release of the compressed air by the dump valve creates a marked hissing sound.

For:
BENTLEY Continental GT from 2003 to 2011
OPEL Astra VXR J Type
OPEL Astra 1.6 GTC
VAUXHALL/OPEL Astra G or H type Z20LET Engine
OPEL Corsa VXR 1.6 Turbo Z16LER Engine
VAUXHALL Zafira A or B avec Z20LET Engine