HKS 45999-AN002 Super SQV Blow-Off Valve Kit for Turbocharged Cars

Vehicle Fitment

• Universal turbocharged fitment - for many turbo engines with compatible piping
• Common examples: Subaru EJ, Toyota 1JZ/2JZ, Mitsubishi 4G63/4B11, Mazda turbo engines
• Not tied to a specific year/make/model - verify hose and flange size before install

Features

• HKS Super SQV high-performance blow-off valve (BOV) kit
• Designed to protect turbo system by releasing excess pressure
• Non-return piston mechanism for quick and reliable operation
• Helps reduce compressor surge for smoother boost transitions
• Improved throttle response during boost-to-vacuum transitions
• Precision aluminum body for durability and light weight
• Sporty turbo sound when lifting off the throttle
• Includes fittings and hardware for installation flexibility

Specifications

• Part Number: HKS 45999-AN002
• Product Type: Super SQV blow-off valve kit
• Valve Body Material: Machined aluminum
• Vacuum/Boost Port: Standard size for many turbo systems
• Pressure Handling: Suitable for mild to moderate boost levels
• Orientation: Adjustable mounting flange
• Fitment: Universal - requires compatible tubing and vacuum line

Included Components

• 1x HKS Super SQV blow-off valve assembly
• 1x Mounting flange adapter
• 1x Vacuum/boost fitting
• O-rings and seals
• Installation instructions

Product Description

The HKS 45999-AN002 Super SQV Blow-Off Valve Kit is a universal turbocharger accessory designed to help protect turbocharged engines and improve throttle response. As boost pressure builds in a turbo system, closing the throttle can send pressure back into the compressor, which may cause unwanted stress on turbo components. The Super SQV uses a non-return piston design that quickly vents this excess pressure, helping reduce compressor surge and supporting smoother transitions from boost to vacuum.

Built with a machined aluminum body for strength and reliability, this blow-off valve also produces a characteristic turbo whoosh sound when the throttle is lifted under boost - something many turbo enthusiasts appreciate. The kit includes the necessary adapter flange, vacuum fitting, and seals for flexible installation in compatible turbo setups. Because this part is universal, it's important to verify that your turbo piping and vacuum line sizes are compatible before installation.