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Dual Port Blow Off Valve,25mm Turbo Diverter Valve Dump Valve BOV Turbine Relief Valve Blow-Off Valve For VW MK4 Golf GTI 1.8T
Made from billet aluminium, this DUAL PORT diverter valve allows charge to be dumped the charge-air back into the air intake system to keep the onboard MAF happy, but also vents some to the atmosphere to create the desired *woosh* sound..
These valves also protect your turbo by reducing thrust damage to turbo bearing typically caused by compressor stalling.
The dump valve can be fully adjusted to suit your specific boost pressure / application. This valve is rated to 2.0 Bar / 30 Psi at full adjustment, so is more than capable for most 25mm applications.
Direct OEM replacement - Recirculating and Atmospheric action
Replacement for standard plastic Bosch diverter unit
Features All aluminium construction, 25mm ports Direct OEM replacement - Recirculating and Atmospheric action Fully serviceable Top twist adjustable for pre-load Replacement for standard plastic Bosch diverter unit Boxed and brand new Fitting kit included Dual Port : 50/50 Atmospheric Recirculation
Fitment fit for Audi, VW, SEAT, Porsche and Skoda (VAG) 1.8T and 2.7 Bi-Turbo engines