HKS Super SQV4 Sequential BOV Assembly

SKU: 71008-AK001 | UPC: 4957266265017

HKS Super SQV4 Universal Blow Off Valve Kit Sequential BOV Assembly

The HKS Super SQV4 Universal Blow Off Valve Kit provides precise boost management for turbocharged vehicles from daily drivers to track cars. This sequential assembly fits any turbo setup with 38-50mm piping using included adapters for Honda Civic Type R Nissan GT-R Subaru WRX STI Toyota Supra and others. It prevents compressor surge delivers instant response and produces the signature HKS psshh sound for smoother shifts and longer turbo life.

Key Features

• Sequential Dual-Valve Operation: Primary valve handles low boost for quick response secondary engages for high pressures up to 30 psi with linear discharge across 5-30 psi range
• Pull-Type Relief System: Differential pressure opens valves without fluttering or hesitation unlike spring-loaded designs for consistent operation and quiet cruising
• Durable Construction: Silver-coated aluminum die-cast body nickel-plated secondary valve stainless steel C-clip and reinforced spring resist corrosion for long life
• Triple Fin Funnel Design: Directs airflow for sharp high-frequency psshh sound improves engine bay looks and gives clear driver feedback
• Broad Boost Compatibility: Stable from vacuum to 30 psi suits stock or modified turbos in compact cars sedans and coupes

Product Notes

• Confirm intercooler piping diameter 1.5-2.5 inches for direct fit or use included universal adapter
• Clean valve periodically to maintain seals and performance during high-boost use
• Ships in compact box measuring 20 cm x 15 cm x 10 cm for easy handling

Installation Notes

• Professional installation recommended.
• Weld HKS-style flange or use included mounting flange adapter for 50mm OD 38mm ID hoses
• Includes silicone hoses T-fitting tie wraps C-ring O-rings and recirculation adapter for complete setup

This Part Fits

Year	Make	Model	Submodel
2017-2021	Honda	Civic Type R	FK8
2023+	Honda	Civic Type R	FL5
1996-2001	Honda	Integra Type R	DC2 DB8
1995-2002	Nissan	Skyline GT-R	R33 R34 RB25 RB26
2009-2020	Nissan	370Z	Z34
2009+	Nissan	GT-R	R35
2002-2021	Subaru	WRX STI	EJ FX
2013+	Subaru	BRZ	ZD6 ZD8
1993-2002	Toyota	Supra	A80
2020+	Toyota	Supra GR	MK5 B58
2012+	Toyota	86 GR86	ZN6 ZT8
2020+	Toyota	GR Yaris	GXPA16
2005-2015	Mitsubishi	Evo	8-10
2004-2011	Mazda	RX-8	SE3P
2015-2021	Volkswagen	Golf R	MK7

Why Choose HKS?

• HKS builds parts trusted in JDM tuning since 1973
• Components deliver reliable boost handling in real-world conditions
• Engineering focuses on airtight seals and instant valve action

Frequently Asked Questions

• Q: Will this fit my turbocharged car not listed above?
  A: Yes as a universal kit it works on any turbo vehicle with 38-50mm piping using the included flange adapter and hoses confirm your intercooler pipe size first
• Q: What materials are used in construction?
  A: Silver-coated aluminum die-cast body nickel-plated valve stainless steel internals and silicone hoses handle -40°F to 250°F and resist corrosion
• Q: What is required for installation?
  A: Bolt-on for HKS flanges or weld adapter for custom pipes kit includes all hardware hoses fittings and seals no extra springs needed

Shipping & Handling

• Method: UPS Ground or FedEx
• Availability: In stock – ships same or next business day
• Packaging: Secure box 20 cm x 15 cm x 10 cm
• Weight: 653 grams (1.44 lbs)