SKU: 28443869605

HKS SSQV4 Blowoff Valve Kit WRX STI 5-DOOR SEDAN (08-11)

$174.57 $193.97
Save 10%
No.2 Bestseller on ateurope.org >

Pay in installments of $48.49 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HKS SSQV4 Blowoff Valve Kit WRX STI 5-DOOR SEDAN (08-11)HKS Super Sequential Blow Off Valve uses a unique sequential valve structure and a differential pressure control system, which allows for a broad operating range from low boost to high boost. Its Pull Type relief design ensures stable operation regardless of the amount of boost pressure. The Super SQV will support new generations of turbocharged vehicles. High Quality Aluminum Die Cast BodySilver coated aluminum die cast body. Combines the ultimate in

HKS Super Sequential Blow Off Valve uses a unique sequential valve structure and a differential pressure control system, which allows for a broad operating range from low boost to high boost. Its Pull-Type relief design ensures stable operation regardless of the amount of boost pressure. The Super SQV will support new generations of turbocharged vehicles.

High Quality Aluminum Die-Cast Body

Silver-coated aluminum die-cast body. Combines the ultimate in looks and durability in the engine compartment

High Stiffness Metal Die-Cast Valve

Secondary valve main portion is made of die cast metal. Reliable operation with beautiful looking

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

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

Primary Valve (Small)

Lift off the throttle, and the primary valve instantly opens, quickly discharging initial excess boost pressure

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

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



Vehicle Fitments:

Year Make Model Submodel
1987 - 1990 Buick LeSabre Base
1985 Buick LeSabre Collector's Edition
1985 - 1990 Buick LeSabre Estate Wagon
1984 - 1990 Buick LeSabre Limited, Custom
1987 Buick LeSabre T-Type
1978 - 1987 Buick Regal Base, Limited
1982 - 1983 Buick Regal Estate Wagon
1987 Buick Regal GNX
1984 - 1987 Buick Regal Grand National
1982 Buick Regal Limited Turbo
1978 - 1982 Buick Regal Sport
1983 - 1986 Buick Regal T-Type
2008 Subaru Impreza 2.0R
2009 - 2010 Subaru Impreza 2.5 GT
2010 - 2011 Subaru Impreza 2.5i Premium
2012 - 2014 Subaru Impreza Base, Limited, Sport Premium, Touring, Sport Limited, Premium
2014 Subaru Impreza I Limited
2013 - 2014 Subaru Impreza i, I Sport
2008 - 2011 Subaru Impreza Outback Sport, 2.5i
2009 - 2012 Subaru Impreza R
2010 - 2014 Subaru Impreza WRX Limited
2009 - 2014 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX SE, 2.5i Limited, WRX STI Special Edition, WRX GT
2011 - 2014 Subaru Impreza WRX STI Limited
2008 - 2014 Subaru Impreza WRX STI, Sport, WRX
2011 Subaru Impreza XV
2015 Subaru WRX STI Launch Edition
2015 - 2018 Subaru WRX STI Limited, Base
2016 Subaru WRX STI Series.HyperBlue
2017 - 2018 Subaru WRX STI Sport, Sport-tech
2018 Subaru WRX STI Type RA, STI
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28443869605

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
DeAnna
Carnegie, US
★★★★★ 5
Solid, Reliable, and Makes the Gross Job Way Easier
Style: 20' Rhino Sewer Hose
Solid, Reliable, and Makes the Gross Job Way Easier This is hands-down the best sewer hose kit I’ve used. It’s sturdy, easy to connect, and doesn’t feel flimsy like some of the cheaper ones. The clear elbow is a lifesaver because you can actually SEE when everything is done (which every RVer knows matters). The hose holds its shape, stretches exactly as needed, and packs up neatly. If you’re full-time or travel often, this is the one you want.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Best hoses out there
Style: 20' Rhino Sewer Hose
Great hoses. Extremely flexible yet sturdy. Manoeuvres around things easy. Perfect thickness without taking up a ton of space. Compatible with alot of accessories offered. No complaints
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
S
Verified Purchase
SELLWOOD
New York, US
★★★★★ 5
Worth the money. Get it.
Style: 20' Rhino Sewer Hose
I am a full time RV'er and these are the best hoses I have worked with. At this point I just do not buy anything else unless I have no choice. Yes, everything fails over time but these last the longest. If you want solid equipment you just don't have to worry about, get these hoses.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
D
Verified Purchase
douglas moyer
Waukegan, US
★★★★★ 5
Good product for the trip
Style: 20' Rhino Sewer Hose
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
M
Verified Purchase
Mike Hayward
Lake Worth, US
★★★★★ 4
Secure, clean hose, poor durability.
Style: 20' Rhino Sewer Hose
The connectors, and plugs work great. I operate an Arctic Fox 990 TC. Plugging the ends keeps any residual in the hose and prevents odors and they ends are very easy to operate. I operate an RV in a climate controlled environment, dumping grey water roughly once every day or two for odor control, with occasional trips dumping more like 5-7 day intervals. I only use one of the two hoses and after about 175 cycles the hose split apart near the end. I shortened it at the break and reattached but within another 10 uses the hose split in the middle. Extending and contracting the hose is hard on it and weakens the folds in the plastic the point of failure within certainly less than 200 uses at 50+F temperatures, so don't expect great longevity out of the hose. I image if you dump in cold temperature, subject it to a lot of movement by leaving it hooked up outside the hose could survive even fewer extensions. If you only dump a few times a year it may last you twenty years or more. The good news is that if you pay attention you'll likely notice the hose split before you run the sewage through it, so if you carry a spare you'll at least be able to dump. I ordered another pair so I can always have at least one spare on hand and I figure my failure rate will be about once every 9 months or so. Camco makes other hoses, including an Extreme that likely doesn't pack tightly enough for two 10' sections in my bumper. I don't need crush resistance, I need durability, so the more expensive hose really wouldn't be an improvement for me since I wouldn't be able to carry a backup. I'm guessing all of these hoses will have a similar durability limitation, especially if extended when cold. I'd like to see a slightly softer, more durable material that will still hold it's shape when dumping, but maybe that's not possible with current plastic characteristics. Main take away is make sure you've got a spare sewer hose section on hand if you have a way to store it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2021

recommand products

ULTIMA FRONT RIGHT GAS SHOCK ABSORBER TO SUIT SUBARU IMPREZA GD G11 EJ251 2.5L F4 FROM 11/2002
170.00
Iron Sharpens Iron
20.00
Savonport 6 Piece King Storage Bedroom - White/Brown
1299.50
Australian Monitor XRS6ODVB
200.00
Gold Package Plus
999.50