by-pass valve to handle turbo volumetric or management turbo pressure

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

Double piston Pop-Off valve with external vent that can be installed on Protoxide Pop Off Valve Renault Clio 4, Renault Captur, Renault Twingo, any Renault car with TCE 0.9 Turbo engine with external vent of 90hp and similar three-cylinder Renault engines.

It allows, through an adapter, to blow the excess air outside, allowing you to hear a classic puff in release, using the original pop off valve.

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

ProtoXide Pop off valve Renault Clio 4 RS 1600 complete with everything needed for installation. Specific for all 1600 engines with 200hp or 220hp

Pop-Off Valve with opiates spring in light alloy with internal vent

Pop-Off Valve 50 mm! Specification for all engines T-Jet Alfa, Fiat, Lancia

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

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

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

Megane RS 2000 16v Turbo 250hp double piston pop-off valve with external vent, specific for all engines.

Double piston Pop-Off valve with internal vent, for recirculation like the original black ones, but with load and indestructible reinforced system.

ProtoXide external vent pop off valve specific for all Ford Focus ST 250hp 2000 turbo engines

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

Popoff valve Golf Scirocco 1.400 Fsi 140-170 hp specific with spacer that allows the excess air to be blown outwards allowing you to hear the classic puff when releasing.