What does a blow off valve do for my MR2?

A blow off valve releases excess boost pressure from your turbo system when you lift off the throttle. This protects your turbo from damage and helps it spool up more quickly for improved response.

Is this kit difficult to install on my 1990-1995 MR2?

This kit is designed as a direct fit for the 3SGTE engine in your MR2. It includes the necessary components for installation, making it a manageable upgrade for many DIYers.

Can this BOV handle high boost pressures?

Yes, the HKS SSQV4 features a unique dual spring system that is effective at both low and high boost pressures, helping to prevent leaks and compressor surge.

HKS SSQV4 BOV Kit 71008-AT009 - 1990-1995 Toyota MR2

Name: HKS 90-95 MR2 3SGTE SSQV4 BOV Kit
Brand: HKS
SKU: hks-hks-90-95-mr2-3sgte-ssqv4-bov-kit-t14-246068
Price: 456.05 USD
Availability: BackOrder

HKS 90-95 MR2 3SGTE SSQV4 BOV Kit

$456.05

On Backorder — Expected to ship by Jun 3, 2026

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

HKS 90-95 MR2 3SGTE SSQV4 BOV Kit

Key Features

Fits 1990-1995 Toyota MR2 3SGTE.
HKS SSQV4 Blow Off Valve kit.
Unique dual spring system prevents boost leaks and compressor surge.
Well-built from durable materials for longevity.
Designed to protect the turbocharger from excess boost pressure.
Helps the turbo spool up faster after throttle release.

This kit is designed for the 1990-1995 Toyota MR2 with the 3SGTE engine. It is not CARB approved and cannot be shipped to California.

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Product Details

This is the HKS SSQV4 Blow Off Valve kit specifically for the 1990-1995 Toyota MR2 with the 3SGTE engine. A blow off valve, or BOV, is crucial for turbocharged cars because it releases excess boost pressure from the intake system when you let off the throttle. This protects your turbocharger from damage and helps it spool up faster on the next acceleration.

The SSQV4 is a popular choice for good reason. It uses a unique dual spring system that helps prevent both boost leaks at lower pressures and compressor surge at higher boost levels. This well-built unit is constructed from durable materials and is designed to handle the demands of a turbocharged engine. The kit includes everything needed for installation, making it a straightforward upgrade for your MR2's induction system.

When installing a BOV, you'll want to ensure all connections are secure to prevent any air leaks. This kit is designed to fit directly onto the factory piping, simplifying the process. While it's not CARB approved and cannot be shipped to California, it's a solid option for MR2 owners looking to improve their turbo system's performance and longevity.