HKS Super SQV IV Blow-Off Valve (Silver) - Subaru Impreza / Forester / Legacy EJ20 (1998-2001)

Name: Subaru IMPREZA / FORESTER / LEGACY EJ20 98-01 SSQV4 (Silver) BOV Kit HKS
Brand: HKS
SKU: HKS71008-AF005
Price: 413 EUR
Availability: InStock

The HKS Super SQV IV (Silver) is a high-performance blow-off valve developed for the Subaru Impreza, Forester, and Legacy equipped with the turbocharged EJ207 engine. Its advanced sequential dual-valve system, combined with HKS differential pressure control, provides rapid and controlled boost pressure release across a wide range of boost conditions. This helps reduce compressor surge and minimise stress on the turbocharger while maintaining excellent engine response.

The proven pull-type valve design uses boost pressure to keep the valve securely sealed under load, reducing the risk of boost leakage even at higher boost levels. The valve features a silver-finished die-cast aluminium body with a die-cast metal secondary valve, providing excellent heat resistance, outstanding durability, and long-lasting performance. The distinctive triple-fin insert produces the signature high-frequency HKS blow-off valve sound. Optional replacement sound inserts are also available separately for enthusiasts who wish to customise the valve's sound characteristics.

Designed specifically for compatible Subaru EJ207 applications, the HKS Super SQV IV offers direct bolt-on installation and OEM-style fitment. It is an ideal upgrade for both lightly modified and high-performance turbocharged builds where reliability, rapid boost response, and the unmistakable HKS sound are equally important.

Features

Designed for Subaru Impreza, Forester, and Legacy EJ20 (1998-2001) with selected EJ207 turbocharged engines.
Genuine HKS Super SQV IV Blow-Off Valve (Silver).
Sequential dual-valve system for rapid and controlled boost pressure release.
Pull-type valve design helps keep the valve securely sealed under boost.
Differential pressure control for stable operation across a wide range of boost pressures.
Helps reduce compressor surge and minimise stress on the turbocharger.
Silver-finished die-cast aluminium valve body.
Die-cast metal secondary valve for outstanding durability.
Triple-fin insert produces the signature HKS blow-off valve sound.
Optional replacement sound inserts available separately.
Direct bolt-on installation with OEM-style fitment.
Suitable for street and track use.

Product video

Technical specification

Article nr:

HKS71008-AF005

Manufacture Partnumber:

71008-AF005

Passar följande Bilar:

Subaru	IMPREZA	GC8	EJ207	98/09-00/07
Subaru	IMPREZA SPORT WAGON	GF8	EJ207	98/09-00/08
Subaru	FORESTER	SF5	EJ205	98/09-02/01
Subaru	LEGACY B4	BE5	EJ208	98/12-01/04
Subaru	LEGACY B4	BE5	EJ206	98/06-01/04
Subaru	LEGACY TOURING WAGON	BH5	EJ208	98/06-01/04
Subaru	LEGACY TOURING WAGON	BH5	EJ206	98/06-01/04

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.