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HKS Super SQV4 Blow Off Valve 2008-2014 WRX / 2005-2009 Legacy GT

by HKS
SKU 71008-AF012
Save $59.25 Save $59.25
Original price $395.00
Original price $395.00 - Original price $395.00
Original price $395.00
Current price $335.75
$335.75 - $335.75
Current price $335.75

Here, you are looking at the HKS SQV4 Blow-Off Valve for the 2008-2014 WRX and 2005-2009 LGT.

In 1994, HKS introduced the first Sequential Blow-Off Valve featuring a unique, pull-type, sequential valve structure and a differential pressure control system. This advanced pull-type relief system allowed for stable operating ranges from low to high boost pressures. Since imitation is the highest form of flattery, HKS has once again redesigned the physical aspects of the Super Sequential Blow-Off Valve to thwart the counterfeiters. 

The reliable functionality of the Super SQV 4 is unchanged and utilizes the same mounting flanges as all previous generation SSQVs. This assures compatibility with all optional HKS SSQV inserts, recirculation fittings, and recirculation kits. 

Super SQV 4 features include a nickel-plated, die-cast metal secondary valve, which is swaged to the primary valve, a stainless steel C-Clip, and spring to increase sealing and durability.


  • Pull-type sequential valve structure
  • New differential pressure control system allows for stable operating ranges from low to high-boost pressures
  • Includes vacuum line filter
  • Includes circlip, T-fittings, and zip ties
  • Includes hose and clamps
  • Includes factory-like flange to bolt onto the intercooler

Customer Reviews

Based on 2 reviews

Everything came as expected except I bought the wrong one. The team at subimods helped me out with exchanging the wrong part with the right part very easily and quickly.


Thank you for sharing your 5 Star Review and experience! We are glad to hear that despite the initial mix-up, the team at Subimods was able to assist you in exchanging the wrong part with the right one easily and quickly. Customer satisfaction is a top priority, and we are here to help make sure you get the correct parts for your vehicle. If you have any more comments or if there's anything else we can assist you with, please feel free to reach out. Thank you for choosing Subimods, and we appreciate your understanding during the exchange process!


Joel Naar

Thanks guys ! Got my hks bov and ignition coil packs right on time.


You are welcome! We appreciate your 5 Star Review! It is great to hear that you received your HKS Super SQV4 Blow Off Valve and ignition coil packs on time. Timely delivery is essential when you are eager to upgrade your vehicle. Enjoy your upgrades, and happy driving!


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