HKS SSQV IV Kit

Fits 2020–2026 Toyota GR Supra with B58 Engine

Part #: 71008-AT021

Overview

The HKS SSQV IV Kit is a high-performance blow-off valve system designed specifically for the Toyota GR Supra equipped with the B58 engine. Crafted for enthusiasts seeking to enhance their vehicle’s turbo response and overall driving experience, this kit offers a reliable and durable solution for improved boost management. Whether you’re upgrading for increased responsiveness or a more aggressive sound, the SSQV IV provides a seamless fit and consistent operation, making it an ideal choice for both street and track use. This kit is perfect for Supra owners who want to optimize their turbocharged engine’s performance while maintaining a refined, sporty sound. It supports quick venting of excess pressure, reducing compressor surge and helping to preserve turbocharger longevity. The result is a more engaging driving feel with improved throttle response and a distinctive blow-off sound that enhances the vehicle’s character.

Key Features

The HKS SSQV IV Kit combines advanced engineering with high-quality materials to deliver a superior blow-off valve experience. Its design focuses on durability, precise control, and ease of installation, making it a popular upgrade among performance-minded drivers.

• Constructed from lightweight, high-strength aluminum for durability and heat resistance
• Innovative piston design for consistent venting and minimal pressure drop
• Adjustable spring preload for tuning response to your preferences
• Seamless fitment for the Toyota GR Supra (2020–2026) with B58 engine
• Distinctive, aggressive blow-off sound for enhanced driving engagement
• Designed to support high boost levels and aggressive driving styles
• Easy bolt-on installation with minimal modifications required

Construction & Design

The SSQV IV features a precision-machined aluminum body with a durable, anodized finish that resists corrosion and heat. Its piston and internal components are engineered for consistent operation under high boost conditions, ensuring long-term reliability and performance stability. The compact, lightweight design allows for straightforward installation without sacrificing structural integrity or performance.

Driving Feel & Feedback

This blow-off valve enhances the vehicle’s response by efficiently venting excess pressure, resulting in a more immediate throttle feel and reduced turbo lag. The distinctive sound adds an engaging auditory cue during aggressive driving, reinforcing the sporty character of the Supra.

Installation & Fitment

The HKS SSQV IV Kit is designed for direct bolt-on installation on the Toyota GR Supra with the B58 engine, requiring no additional modifications. Proper fitment ensures a secure seal and optimal performance, making it suitable for both DIY enthusiasts and professional installers.

What’s Included

The package includes the SSQV IV blow-off valve, mounting hardware, and necessary fittings for a complete installation. Additional accessories or tools are not typically required for a standard upgrade.

HKS is a Japanese company specializing in high-performance aftermarket automotive parts, including turbochargers, exhaust systems, suspension kits, and electronic control units. Their products are designed for enthusiasts seeking to enhance vehicle performance, offering reliable and precise components for various builds and driving scenarios.