Recirculation Valve Uprated Forge - Z16LEx A16LEx Z20LEx A20NFT
Designed as a direct replacement for the OEM valve which is prone to failure when the engine has been tuned or had an upgrade to the engine management software. FMDVK04D
This Forge Recirculation Valve is complete and ready to install with no fitting kit required.
It is available with 3 spring choices depending upon the state of tune of the engine.
Valve Spring Colour Coding: The weakest spring is GREEN, followed by YELLOW, and BLUE. This represents an increase of 25%, 50%, and 75%.
*The above should only be considered as a guideline*
Green Spring - For Standard Cars/Standard Boost/Mild Tune
Yellow Spring - For mapped cars:
Astra G, Zafira A - Stages 1, 2, 3 and 4 using an OE or VXR turbo unit.
Astra H, Zafira B - Stages 1, 2, 3 and 4 using an OE or VXR turbo unit.
Astra H VXR, Zafira VXR - Stages 1, 2, and 3 using VXR turbo unit.
Astra J VXR - Mapped Cars
Corsa D 1.6 SRiT/VXR - Stages 1, 2, and 3
Meriva VXR - Stages 1, 2, and 3
VX220 Turbo - Stages 1, 2, 3 and 4 using an OE or VXR turbo unit.
Blue Spring - For K06 Hybrid VXR Turbos running higher boost
Additional Springs available if required when changes are made to vehicle tune.
Astra G Z20LET GSi/SRi Turbo
Astra H Z20LEL/LER 2.0 Turbo
Astra H Z16LET 1.6 Turbo
Astra H VXR
Astra J A16LET
Astra J VXR
Corsa Z16LEL 1.6 Turbo
Corsa D VXR
Insignia 1.6 Turbo A16LET
Zafria A Z20LET GSi Turbo
Zafria B Z20LER 2.0 Turbo