The SQV4 Black Edition Blow-Off Valve is the latest rendition of HKS's ever-popular SSQ blow-off valve to quickly purge boost in the 2015-2021 Subaru WRX.
RallySport Direct proudly carries quality performance products from the pioneers of the sport compact industry, HKS. They are one of the pioneers of aftermarket performance products!
This is the HKS Black Edition SQV4 Sequential BOV. This is the grandfather of blow-off valves with its flagship sound that remains to be one of the most effective blow-off valves in the aftermarket. This blow-off valve reacts very quickly to purge excess boost while creating that flagship HKS blow-off valve chirp. A great upgrade over the factory diverter valve in your WRX.
DETAILS:
Black Edition
Pull-type sequential valve structure
The new differential pressure control system allows for stable operating ranges from low to high-boost pressures
Includes vacuum line filter
Includes circlip, T-fittings, and zip ties
Will include the return kit to integrate into the stock plumbing
NOTE:
Includes return kit
The return kit will allow the user to convert the SQV4 into full recurculation