HKS SSQV VTA Dump Valve Blow Off Valve Subaru Impreza WRX and STI 1996-2020

Quick Overview:
Loud and Distinctive Sound Possibly the most distinctive dump valve around! The HKS Super Sequential Blow Off Valve (SSQV) is unique in bot...
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Product Information


Loud and Distinctive Sound
Possibly the most distinctive dump valve around! The HKS Super Sequential Blow Off Valve (SSQV) is unique in both its sound and operation. The SSQV produces a high pitched WRC style 'chirp' when releasing unwanted pressure helping the turbo continue to spin reducing any lag in between gear changes.
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Ability to Handle High Boost Pressures
Machined from billet Aluminium to the highest standards the SSQV can handle standard to very high boost pressures as a result of its unique 'pull type mechanism' whereby the boost actually helps hold the valve shut totally eliminating any boost leakage.

Model Specific Fitting Kit
Model specific fitting kit included in each pack, including vacuum hose, ties, bung, etc.

Dual Valve Structure, Sequential System
At low boost ranges the Primary Valve opens, and at high boost ranges the Secondary Valve also opens, resulting in linear response and optimal blow-off operation at all boost levels.
HKS SSQV in Action

1.High Quality Aluminum Die-Cast Body
Silver-coated aluminum die-cast body. Combines the ultimate in looks and durability in the engine compartment.

2.High Stiffness Metal Die-Cast Valve
Secondary valve main portion is made of die cast metal. Reliable operation with beautiful looking.

3.Triple Fin design produces "Super Sound"
Triple Fins set at the center of the funnel produces a dynamic and aggressive sound. An optional special Round Fin can be purchased separately for sound tuning.

5.Pull-Type Relief Valve Operation
The Pull-Type valve operation offers more precise relief of excess boost and is compatible for a wider range of boost pressure compared to typical push-type blow off valves.

6.Primary Valve (Small)
Lift off the throttle, and the primary valve instantly opens, quickly discharging initial excess boost pressure.
7.Secondary Valve (Large)
This valve combined with the Primary Valve from the sequential dual valve structure. Optimal blow-off operation from how to high boost ranges without leaking.

New Age Model shown - other models may differ. Early Impreza Classic models do not have the flange shown. Please note:

AF003 applies to Classic models with hose type connection
AF005 applies to Classic models with intercooler flange connection

Like most of our items, this is normally in stock for immediate dispatch, however the Classic Impreza models usually are a special order taking around 3 days to arrive.

Genuine HKS Product
As an HKS dealer, you can be assured of a genuine HKS product. Please be very wary of the numerous fake HKS currently in circulation. They look almost identical but are of poor quality and dire performance. If the price looks too good to be true, its probably a fake

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