Protoxide Pop Off valve with double spring external vent 34mm connection

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

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

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

Pop-Off valve with double light alloy spring

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

Double piston Pop-Off valve with external vent that can be installed on Renault 5 GT turbo on both 115 and 120hp versions p>

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 ProtoXide valve specific for all Renault engines with 1600

TialSport Pop-Off valve with external vent with valve diameter of 50.5 mm, the largest in the world to be installed on turbo engines for external vent complete with adapter to be applied on the sleeve.

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

Pop FAST allows you to blow off the excess air outside allowing you to feel in classic puff in the release.

Double-piston Pop-Off valve with external breather specific for this Toyota engine

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

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, specific for all engines 1.6 turbo PSA