What is the primary function of a blow-off valve like the HKS SUPER SQV4?

A blow-off valve, or BOV, releases excess boost pressure from the intake system when you lift off the throttle. This prevents compressor surge, which can damage your turbocharger, and helps maintain consistent boost pressure.

What makes the SUPER SQV4 different from other blow-off valves?

The SUPER SQV4 features a unique sequential valve structure and a dual spring system. This advanced design allows for a faster and more complete response, ensuring the valve opens and closes precisely when needed for improved performance and a distinct sound.

Is this blow-off valve legal in all states?

No, this HKS SUPER SQV4 is not CARB approved and cannot be shipped to California. It's important to check your local emissions regulations before purchasing and installing this part.

HKS SUPER SQV4 Blow Off Valve 71008-KN030

Name: HKS SUPER SQV4 RZ34 VR30DDTT
Brand: HKS
SKU: hks-hks-super-sqv4-rz34-vr30ddtt-t14-795442
Price: 1212.29 USD
Availability: BackOrder

HKS SUPER SQV4 RZ34 VR30DDTT

$1212.29

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

HKS SUPER SQV4 Blow Off Valve for VR30DDTT engines.

Key Features

Fits vehicles with the VR30DDTT engine.
HKS SUPER SQV4 (Super Sequential Valve) design.
Sequential valve structure and dual spring system for improved response.
Releases excess boost pressure to protect the turbocharger.
Die-cast aluminum construction for strength and light weight.
Designed as a direct replacement for the factory blow-off valve.

This HKS SUPER SQV4 blow-off valve is designed for vehicles equipped with the VR30DDTT engine. Please verify your vehicle's engine and chassis code to ensure compatibility.

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Product Details

This is the HKS SUPER SQV4 (Super Sequential Valve) blow-off valve specifically designed for the VR30DDTT engine found in RZ34 chassis vehicles. If you're looking to upgrade your car's forced induction system, this part is a popular choice for managing boost pressure. The SUPER SQV4 is a well-known upgrade that helps protect your turbocharger by releasing excess boost pressure when you lift off the throttle, preventing compressor surge and extending the life of your turbo. It's designed to be a direct replacement for the factory blow-off valve, making installation more straightforward.

What sets the SUPER SQV4 apart is its unique sequential valve structure and dual spring system. This advanced design allows for a much faster and more complete response compared to single-piston blow-off valves. It ensures that the valve opens and closes at the precise moment needed, providing a crisp and satisfying sound when boost is released. The body is constructed from die-cast aluminum, which is both strong and lightweight, contributing to its overall durability. HKS has a long history with performance tuning, and this blow-off valve reflects that experience, offering a noticeable improvement in throttle response and a distinct auditory feedback that many enthusiasts appreciate.

When installing the SUPER SQV4, you'll find that it's designed to fit right into the factory plumbing. While it's a direct replacement, it's always a good idea to refer to the manufacturer's installation instructions for any specific details or torque recommendations. This part is not CARB approved and cannot be shipped to California due to emissions regulations. Ensure you check local regulations before purchasing if you are in a state with similar emissions requirements.