HKS SSQV IV + Return Kit for GR Supra – B58 Engine with HKS Intake

Description

Overview

The HKS Super SQV IV Blow-Off Valve Return Kit upgrade designed for the Toyota GR Supra (A90) equipped with the B58 3.0L turbo engine. Engineered by HKS, this kit combines proven performance, reliability, and the iconic HKS blow-off sound while maintaining proper drivability through a recirculated return system.

Featuring HKS’s Sequential Blow-Off Valve (SSQV) IV design, this valve uses a differential pressure control system that ensures stable operation across a wide range of boost pressures. The sequential design allows for quick and precise pressure relief during throttle lift, helping protect the turbocharger from compressor surge while maintaining boost response between shifts.

This kit is designed for use with HKS intake systems, including the HKS Carbon Racing Suction and HKS Cold Air Intake, providing a direct-fit solution with proper airflow characteristics. The included return (recirculation) system routes excess pressure back into the intake tract, making it suitable for street-driven vehicles and helping maintain consistent air-fuel ratios.

Constructed from high-quality aluminum with a silver anodized finish, the SSQV IV offers improved durability over factory plastic components and adds a clean, performance-focused appearance to the engine bay. Even on modern turbo engines with limited intake vacuum, the Super SQV IV delivers a crisp, unmistakable blow-off sound without sacrificing performance.

Features

• Designed for HKS Carbon Racing Suction and Cold Air Intake systems

• Differential pressure control for stable operation at low and high boost

• Return/recirculation kit included for proper street functionality

• Durable aluminum construction with silver anodized finish

• Helps prevent compressor surge and protects turbocharger longevity

• Signature HKS blow-off sound

Compatibility

• 2020+ GR Supra w/B58 3.0L

Not CARB Legal

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