Turbo Kits

HKS Super SQV 4+RETURN KIT CZ4A

Super SQV4 Kit to replace the factory air bypass valve. Three spoke fins are included in the kit, which allows the valve to release the compressed air and create unique and sharp high frequency sound. Connecting to the stock air bypass hose recirculates...

HKS 09-10 GT-R R35 SSQV4 BOV Kit Includes 2 SSQV & Polished Aluminum Pipes

HKS Racing SQV Universal BOV

HKS 08+ Evo 10 SSQV4 BOV Kit Includes 2 Polished Aluminum Pipes

HKS SQV IV BLACK EDITION UNIVERSAL ASSY

HKS 17-19 Honda L15C & L15B Super SSQV4 BOV Kit w/o Recirculation Tube

Civic Type-R FK8 Super SQV4 Sequential Blow Off Valve by HKS HKS Super SQV (Sequential Blow Off Valve) uses a unique sequential valve structure and a differential pressure control system, which allows for a broad operating range from low boost to high...

HKS Super SQV 4+RETURN KIT GRB/GRF

HKS 17-19 Honda L15C & L15B Super SQV Recirculation Kit for 71008-AH011 includes recirculation tube

Here, you are looking at the HKS SQ4 Sequential BOV for the 08+ Subaru STI. 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. DETAILS: Pull-type sequential...

HKS 08-10 WRX / 05-06 Legacy 2.5 GT SSQV4 BOV Kit

HKS 02-07 WRX/ 04-07 STi SSQV4 BOV Kit

HKS 07 Mazda3 Mazdaspeed SSQV Recirculation Kit for hks71007-AZ008

HKS 08 Mitsubishi Lancer EVO GSR/EVO MR SSQV Recirculation Kit for hks71007-AM015