HKS Super SQV IV Blow-Off Valve (Silver) - Subaru Impreza / Forester EJ20 (1996-1998)
The HKS Super SQV IV (Silver) is a high-performance blow-off valve developed for the Subaru Impreza GC8 and compatible Subaru Forester models equipped with the turbocharged EJ20K 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.
Developed specifically for compatible Subaru EJ20K 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 GC8 and compatible Subaru Forester EJ20 (1996-1998) models.
- For selected EJ20K 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.
- Direct bolt-on installation with OEM-style fitment.
- Suitable for street and track use.
