Protoxide Pop-Off Valve with external vent for Audi S3 TT 215 -225 hp

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.

Pop-Off Valve double-piston vented outside for Subaru.

Pop-Off valve with external vent for turbodiesel engines with digital controller with integrated display, to allow easier calibration and which will allow you to hear the classic puff even on latest generation Turbodiesel engines

Internal spring for Pop off Tial Blow Off valve with different settings available and interchangeable with the original spring.

Plug and play emulator to be connected when the original Fiat 500 Abarth pop off valve is removed so that the "engine failure" warning light comes on when the original electric pop off valve is removed from the system.

Pop-Off valve for Opel Corsa OPC with internal vent with double spring complete with steel sleeve with relative silicone details

ProtoXide Pop off valve specific for Toyota Celica GT Four 2000 with T-piece for vacuum and vacuum silicone tube

Allows you to blow the excess air outside allowing you to feel in classic puff in the release.

Pop-Off Valve with external vent for diesel engines.

Pop-Off Valve double-piston vented outside specification for Mitsubishi evo 7-8-9.

Pop-Off Valve specifications for BMW 335i E93 bi-turbo engine, complete with everything needed for installation.

Pop-Off Valve double-piston vented outside, specific for all engines 1.6 turbo PSA

Pop-Off valve with external vent for turbodiesel engines with mechanical pump and old generation, exclusive ProtoXide kit. Unobtainable.

Double piston pop-off valve with external vent that can be installed on Ford Escort Cosworth and Ford Sierra Cosworth

Double piston Pop-Off valve with external vent that can be installed with connection on a 34mm diameter sleeve