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HKS Super SQV4 Blow Off Valve - Universal
HKS Super SQV4 Blow Off Valve - Universal
HKS Super SQV4 Blow Off Valve - Universal
HKS Super SQV4 Blow Off Valve - Universal
HKS Super SQV4 Blow Off Valve - Universal
HKS Super SQV4 Blow Off Valve - Universal
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User Media for: HKS Super SQV4 Blow Off Valve - Universal
User Media for: HKS Super SQV4 Blow Off Valve - Universal

HKS Super SQV4 Blow Off Valve

Universal

Read 7 Reviews | 25 Q&As
Part # 71008-AK001
$253.70
msrp: $295.00

In stock!
Ships today if ordered in
4 hrs 13 mins
Universal part

Features & Product Details

RallySport Direct proudly carries quality performance products from the pioneers of the sport compact industry, HKS.

On this page, you are looking at the HKS SQ4 Sequential BOV. This is the grandfather of blow-off valves with its flagship sound that remains to be one of the most effective blow-off valves in the aftermarket.

Here are the details:

  • 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
  • Product Video

    Specifications

    Brand: HKS
    Adjustable: No
    Color: Silver
    Design: Diaphragm
    OEM Replacement: No
    QTY: 1
    Valve Type: Atmospheric
    Includes Gasket(s): No
    Mfgr. Warranty: 1 Year
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    Standard

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    7 Reviews
    3.6 out of 5 Stars
    5 Stars
    (2)
    4 Stars
    (2)
    3 Stars
    (1)
    2 Stars
    (2)
    1 Stars
    (0)
    Customer Photos and Videos
    HKS Super SQV4 Blow Off Valve ( Part Number: 71008-AK001)
    HKS Super SQV4 Blow Off Valve ( Part Number: 71008-AK001)
    Focus 2018 ST 6 months ago
    5out of 5stars

    HKS... the legendary BOV sound no one has copied. This is the 7th one of these I have put into one of my cars. Hands down my favorite BOV.
      
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    Phenomenal product 8 months ago
    5out of 5stars

    This BOV does exactly what it should o months now and have had no issues at all. After fitting the BOV to a vehicle specific flange and making sure that I had the angle correct for hood clearance, things went very smoothly. This is by far one of the best BOVs on the market. If you want an amazing BOV that is made by a quality manufacturer... LOOK NO FURTHER... this piece of art will turn heads and Make you smile from ear to ear at every release of boost. It is also very nice to have the ability to change the frequency of the release with easily installable fins.... The perfect product for ANY turbo vehicle.
      
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    1 of 1 people found the following review helpful
    Updated review! 2 years ago
    4out of 5stars

    I have been able to fix the issue that I was having with my 2013 wrx hatch, the bov was fine and works as it should! its a solid piece however the bottom plate still had its issue where it was not even all the way across and it had issues fitting in attachments made for it.
      
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    1 of 1 people found the following review helpful
    Its alright, while it lasted 3 years ago
    2out of 5stars

    Alright, so I bought the BOV and flange from a highly reputable perfomance shop about 2 or 3 months ago. It was a pain to put on the adapter because the bottom plate of the BOV was too big and not consistent on how thick the metal is. I had to shave it down a bunch on one side of the BOV and a little on another to get it to fit. Let me tell you that thing really fits in there. Now after 2 months of driving around with it, im assuming the seal in the BOV went bad, when I get into boost, I can hear a larg ammount of air coming out of the BOV. Im going to see if I can fix it or just replace it with a different one.
      
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    Awesome product  3 years ago
    4out of 5stars

    Overall the product is well made and the sound it makes is intoxicating. I have 2 friends that have this on their cars and it sounds ridiculously good. You'll be popping on and off the throttle continuously. The only issue I had was that I could not get it to fit with my PW Verticooler there just wasn't enough clearance. I'm sure there is a way to get it to fit somehow but not that I could see. Yes you have to buy the separate flange but that's why it's a universal part not a vehicle specific.
      
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    QUESTIONS & ANSWERS

    • Q: question  henryc1 month ago

      im planning on installing this on my civic si 10th gen, will i need a tune????
      • 0 of 0 people found the following answer helpful

        A:  I would recommend getting the car retuned if you are going to be switching BOVs

        Tylo R @ RallySport Direct
          
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    • Q: BOV  SubaruFan8082 months ago

      Will this fit a 2017 Ford Focus RS? Thanks
      • 0 of 0 people found the following answer helpful

        A:  This is a universal product which is not designed with any specific vehicle in mind, so it might require a custom flange and/or adapter for proper installation.

        Brady R @ RallySport Direct 1 month ago  
          
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    • Q: Tune  Initial RD2 months ago

      I'm running a Tial bov at the moment. I'm looking to switch it up to the HKS SSQV bov but was wondering if I'll need to re-tune my car? I realize I'll have to get new IC piping and hks flanges etc to make this switch work, but the tune is what I'm not certain about. I've asked around and people have said any changes to your vehicle should get a re-tune. Thoughts?
      • 0 of 0 people found the following answer helpful

        A:  I would recommend getting the car retuned if you are going to be switching BOVs

        Tylo R @ RallySport Direct
          
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    • Q: Adapter   Chamberlin_russell5 months ago

      So what do I have to buy for this to fit on my 2015 sti?
      • 0 of 0 people found the following answer helpful

        A:  you would need this https://www.rallysportdirect.com/part/blow-off-valve-flanges/71002-ak013-hks-ssqv-flange-weld-on-aluminum-60mm

        Tylo Akiona
          
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    • Q: Blow off valve  Jav047 months ago

      Does this universal BOV fit a 2004 subaru wrx?

    This Part Fits

    Universal Product
    This item is non application specific.
    Please verify compatibility before purchase. May require some modification for proper installation.