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HKS SSQV Subaru Impreza Versions 1 2 only
GC8 EJ20K /GF8 EJ20G - Forester SF5 EJ20G
The HKS Super Sequential Valve is a dual stage pull type relief valve for the Subaru Impreza, which prevents compressor surge by releasing (either back into the intake stream or into the atmosphere) the compressed air flow that is normally forced backwards into the turbo as the throttle is closed.
Engine performance is increased from quicker turbo spool up as the compressor speed is not reduced by backwards air flow. The life expectancy of the turbo is also increased, as its bearings will not suffer from the impact that is common with compressor surge.
Vehicle specific HKS Super Sequential Blow-off Valve complete with all needed mounting flanges, brackets, and miscellaneous hardware for a bolt-on installation.
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