It allows to blow the excess air outside allowing you to feel classic puff in release. It is installed on all engines 3-cylinder Citroen and Peugeot 1100 and 1200 turbocharged 3-cylinder
Pop Off ProtoXide valve specific for all Alfaromeo Giulietta and Alfaromeo 159, Brera 1750 Tbi Alfaromeo Giulietta and Alfaromeo 159, Alfaromeo Brera and Alfaromeo 4C engines
DOUBLE STAGE Pop-Off valve with external vent WITH DOUBLE TYPE OF SOUND ! The first possibility is the puff produced by the POPOFF valve itself while the second possibility produces a puff produced by the Turbocharger that can be chosen directly from inside the passenger compartment by simply pressing a switch, when preferred. It can be installed on numerous cars including Fiat Punto GT, Fiat 500 Abarth, Renault 5 GT, Lancia Delta, Ford Escort Cosworth etc. and many other cars.