Z1 Q50 / Q60 VR30DDTT HKS Blow Off Valve Kit - Z1 Motorsports - Performance OEM and Aftermarket Engineered Parts Global Leader In 300ZX 350Z 370Z G35 G37 Q50 Q60
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Z1 Q50 / Q60 VR30DDTT HKS Blow Off Valve Kit

starstarstarstarstar_half 4.9/5 - (33 Reviews)
Fits models: Q50 / Q60 2017+

Product Description

The VR30DDTT Blow Off Valve Kit includes everything needed to install blow off valves on VR30 equipped Infiniti Q50 Sedans and Q60 Coupes. 

Why do I need blow off valves?

A Blow Off Valve's sole purpose is to protect your turbo. The valve is actuated by manifold vacuum, designed to vent excess boost pressure into the atmosphere on forced induction cars when the throttle is closed. This release of boost pressure prevents damaging reverse shock waves from reaching your turbo while creating the infamous "psshhhh" sound that turbo cars are known for. Without this release pressurized air can beat the turbine shaft bearing and compressor wheel to death. In more extreme cases the compressor wheel can literally explode in the housing.

Due to the complete lack of recirculation or blow off valves on the VR30 powertrain, boost pressure remains in the intake tract when transitioning off throttle. When increasing boost pressure and tuning this leaves the tuner with two options:

A: Slamming the throttle shut when lifting off throttle. Boost pressure is not bled off, resulting in reverse thrust on the turbo's compressor wheel. This shock-load causes accelerated turbo thrust bearing wear, which will to destory the turbo.

B: Gradually shutting the throttle when lifting off-throttle (this is the "I'll risk my car and life to save these turbos" scenario).  It's like this, you have just been making a sweet power pull and the car has broken traction at about 60 mph. You're now sideways and you can't reel it back in straight so you release the throttle, but this evil car is still boosting away accelerating as you look at that oncoming telephone pole. If you're lucky you'll save it and order this kit before you have to buy replacement body work. If you didn't save it we have replacement body panels here, and you have to hope that no one got a video of you going full Mustang.

After installing blow off valves, the boost pressure is then vented to atmosphere. This saves the turbos from accelerated thrust bearing and compressor wear.  And lets you drive this car like it's meant to be driven.

Aftermarket blow off valves like the HKS SSQV4 included in this kit have the ability to flow a high volume of air, ideal for higher boost applications where the boost pressure is increased. We have used these blow off valves on applications beyond 600whp for more than a decade.

The HKS Sequential Blow-Off Valve features a unique pull type sequential valve structure, and a differential pressure control system. This advanced pull-type relief system allows for stable operating ranges from low to high boost pressures. HKS' Super SQV 4 features a nickel-plated, die-cast metal secondary valve, which is swaged to the primary valve. A stainless steel C-Clip and spring are used to increase sealing and durability.

Includes:

  • (2) HKS SSQV 4 Blow Off Valve
    • Includes Snap Ring, Zip Ties, and O-Ring
    • Optional Pre-assembled and Indexed In Provided Flange (Not Pictured)
  • (2) HKS Blow Off Valve Flange
  • (2) Z1 Silicone Blow Off Valve Hoses
  • (2) Z1 Silicone Throttle Body to Intercooler Hoses
  • (1) Z1 Silicone Vacuum Hose - 3ft
  • (1) Install Guide

Z1 Silicone BOV Hoses and Throttle Body to Intercooler Hoses available in the following colors:

  • Black
  • Blue
  • Red 

Fits:

  • 2016+ Infiniti Q50 Sedan 3.0t
  • 2017+ Infiniti Q60 Coupe 3.0t

Pictured installed in red along with the Z1 Q50 / Q60 VR Silicone Radiator Coolant Hoses and the Z1 Q50 / Q60 VR Silicone Intercooler Coolant Hoses.  

*** This item does not qualify for any additional discounts or promotions ***

Available Options:

Please review the product description if you are unsure about any of the options below.

Silicone Color: Option:

Quantity:

Price: $648.00
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Z1 Q50 / Q60 VR30DDTT HKS Blow Off Valve Kit
Z1 Q50 / Q60 VR30DDTT HKS Blow Off Valve Kit
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$648
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Questions our customers have asked

Hi, will this item fit Q60 (2017+) 2.0T base model?
This product is made specifically for the 3.0t VR30DDTT.

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What our customers say

See all reviews
starstarstarstarstar
Damien
July 24, 2021
Awesome product. I love them
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Osviel
July 15, 2021
Everything work perfectly but I have a question what happens if I don’t put the filter of the blow off the little thingy that goes in the rope
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Erik
July 9, 2021
works great! However the assembly portion of the valves & adapter was a pain in the a** when it comes to seating the retainer ring/snap ring
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Marcus
June 22, 2021
I love these blowout valves they sound and work amazing thanks z1
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Angelia
June 11, 2021
Love it! Color I ordered was perfect thanks guys!
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Boain
June 7, 2021
Well made and fairly easy to install. Looks great.
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Anthony
June 5, 2021
Car sounds amazing and shipping was fast
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Edwin
May 11, 2021
Great product! HKS never disappoints, and z1 provides the necessary accessories for this product.
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Burak
April 27, 2021
Love it! Sounds great and wasn’t too bad to install!
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Clayton
April 26, 2021
Got exactly what I wanted. Thank you guys for your prompt service
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Andrew
April 20, 2021
Love it wish the instructions were better but truly exceptional product
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Aiching
April 14, 2021
Sounds awesome! A must have for any turbo vehicle, peace of mind on extending your he life of your turbos
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Cody
April 8, 2021
The product is perfect. You can hear it. It’s pretty loud. Better then stock obviously
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Hector
April 6, 2021
I love them so much they sound amazing !!!! Z1 add everything you need to make the install super easy
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Julius
April 3, 2021
Let me say, this shipping time is insane. 2 days and I had the kit. Kudos for that! As far as the kit goes, its well put together, and overall its not a complex BOV set up to install. However, the instructions that come with it can be a bit vague for some who aren't used to doing things like this. That being said even though this kit is awesome, during install, you will probably run into some issues and frustration with the passenger side couplers and that vacuum line in the back of the engine bay. But its doable and I really do like the way it sounds which made installing them myself worth it!
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Garret
March 17, 2021
Prepair for 3-5hrs of labor but worth every minute !
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Eduardo
March 14, 2021
Works wonders!! Sounds amazing! Totally makes a huge difference love the reaction time ! I highly recommend if you have a turbo car
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Anthony
March 11, 2021
I love the look and sounds of this kit. The red color makes my engine bay pop! Quick shipping too! Recently made another purchase from Z1 because of the great experience I had instead of buying elsewhere to save a few bucks.
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Alexander
March 9, 2021
Best addition I’ve added so far to my car! Sweet sound
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Jose
March 8, 2021
They sound good but there not loud as I would want them to be.
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Jose
March 8, 2021
These valves are amazing and the sound is a plus, took me around two days because i dont have a lot of time during the day since i have a regular job, but the install is pretty easy, make sure you follow all the steps
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Nick
March 3, 2021
Sounds and looks great! had it for about a year with no issues. High quality materials.
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Bryson
February 20, 2021
Have not installed yet but very nice and shipping was fast
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John
February 15, 2021
Other than the little vacuum leaks now and then they work as advertised
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Eduard
February 13, 2021
Fast shipping, excellent quality this valve,good fitment, I really love it sound. Thanks guys.
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Aquila
February 9, 2021
Fairly easy install. I followed a video from YouTube. Once I got them on ,nice. I love that sound
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Scott
February 4, 2021
Top notch blow off valve. Any Infiniti tech would recommend these for the health and longevity of your turbos.. on top of that, gives a nice whooshing sound when letting off throttle.
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Jarrod
January 28, 2021
Installation sucks. And none of the clamps were facing a direction that made sense. But that has nothing to do with how the car sounds once these are installed. And let's be honest, you only bought them for the sound. The sound great and look great. And they do prevent early wear on the turbos, which is important I guess.
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Michael
January 27, 2021
Love the the iconic sound of HKS coming from my Q50. Great addition to save my turbos as well.
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Bobby
January 26, 2021
Simply amazing everything and more then I wanted shipping was quick great company great product.
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Bobby
January 26, 2021
Simply amazing everything and more then I wanted shipping was quick great company great product
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Spencer
January 25, 2021
Added these with a tune and it made the car much more controllable, especially when it breaks traction. Can't believe I hadn't totaled my Q before, they really should have come with something like this from the factory. Also these make the super cool HKS noise!
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Michael
May 1, 2018
This kit is awesome! The fit and finish is impressive and the blow-off valves fit perfectly in a very tight engine bay. The instructions could be a bit clearer in some areas, and the photos don't give enough context of what is being shown (specifically with regards to where the vacuum line is that's being tapped into (driver's side, not the passenger's side). Overall, the installation was a little tricky because of how tight the engine bay is, but the kit was perfect and is helping to save the turbo bearings, so it's functional and cool. I created an install video on YouTube to show the installation process here: https://www.youtube.com/watch?v=GXOnoN5XHU4