HKS Super SQV IV Blow-Off Valve (Silver) - Subaru Legacy B4 (2001-2003)

Name: Subaru LEGACY B4 01/05-03/05 SSQV4 (Silver) BOV Kit HKS
Brand: HKS
SKU: HKS71008-AF007
Price: 413 EUR
Availability: InStock

The HKS Super SQV IV (Silver) is a high-performance blow-off valve developed for the Subaru Legacy B4 BH5/BE5(D) (2001-2003). Its advanced sequential dual-valve system delivers stable operation across both low and high boost levels, while the proven pull-type valve design provides rapid and controlled boost pressure release without leaking under high boost. This helps reduce compressor surge and minimise stress on the turbocharger while maintaining excellent engine response.

The valve features a robust die-cast aluminium body with a silver finish, combining lightweight construction with excellent heat resistance, outstanding durability, and long-lasting performance. The distinctive triple-fin insert produces the signature, aggressive HKS blow-off valve sound, making the SQV IV as desirable for its sound characteristics as for its performance.

This vehicle-specific kit includes the components required for direct bolt-on installation on compatible Legacy BH5/BE5(D) models. Designed for properly matched forced-induction systems where airflow, fuelling, cooling, and engine management work together, the HKS Super SQV IV is an excellent upgrade for both performance street cars and motorsport-inspired builds.

Features

Designed for Subaru Legacy B4 BH5/BE5(D) (2001-2003).
Genuine HKS Super SQV IV Blow-Off Valve (Silver).
Sequential dual-valve system for stable operation across low and high boost levels.
Pull-type valve design provides precise boost pressure release and helps keep the valve securely sealed under high boost.
Helps reduce compressor surge and minimise stress on the turbocharger.
Triple-fin insert produces the signature HKS blow-off valve sound.
Silver-finished die-cast aluminium valve body.
Excellent heat resistance, outstanding durability, and long-lasting performance.
Vehicle-specific kit with direct bolt-on installation and OEM-style fitment.
Engineered for high-temperature and high-load operation.
Suitable for street and track use.

Product video

Technical specification

Article nr:

HKS71008-AF007

Manufacture Partnumber:

71008-AF007

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In October 1973, two talented and young engineers had a vision; to design and build high performance engines and components that major OE manufacturers could not, or would not, produce. HKS pioneered the Japanese aftermarket industry by delivering a host of exciting new products, including the first commercially available electronic turbo timer and boost controller. Other early products included piggy-back ECUs and sophisticated fuel management tools. HKS was clearly driving performance trends for Japanese vehicles forward!

Today, HKS is one of the world's most well-known brands and the obvious choice for you who builds a JDM car. In the assortment you will find everything from chassis products to exhaust systems and turbo kits. HKS is behind some of the coolest builds and professional drivers in the world, so when you choose HKS, you choose the best.