SKU: 71008-AF006 | UPC: 4957266265062
HKS 02-07 WRX 04-07 STI SSQV4 BOV Kit
The HKS SSQV4 BOV Kit replaces stock blow-off valves on 2002-2007 Subaru Impreza WRX and 2004-2007 WRX STI models. This sequential blow-off valve prevents compressor surge during shifts while releasing boost with a sharp sound. The complete kit ensures easy integration for turbocharged Subaru owners seeking reliable pressure management.
Key Features
- Sequential Twin-Valve Design: Pilot valve opens first for instant throttle response then main valve engages for massive airflow up to 500HP
- Complete Kit Contents: Includes SSQV4 valve black edition front pipe welding flange gasket and mounting hardware for bolt-on fit
- Adjustable Preload: Turn screw fine-tunes opening pressure to match boost levels and ECU settings
- Die-Cast Aluminum Body: Lightweight at 680g with durable anodized black finish resists corrosion and wear
- High-Flow Capacity: Handles pressure up to 2.2 bar with minimal restriction improves turbo spool and longevity
Product Notes
- Welding required on included flange to match intercooler piping diameter
- Verify ECU boost map compatibility before install to avoid check engine lights
- Secure packaging protects components during transit
Installation Notes
- Professional installation recommended.
- Weld flange to hard pipe after measuring 50mm inner diameter match
- Uses stock mounting holes torque bolts to 10Nm with included hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2007 | Subaru | Impreza WRX | STI |
Why Choose HKS?
- Over 45 years developing turbo systems for rally and drift racing
- JDM engineered components tested to extreme boost pressures
- Direct replacement trusted by Subaru tuners for daily and track use
Frequently Asked Questions
- Q: Will this fit my 2005 Subaru WRX?
A: Yes it bolts directly to 2002-2007 WRX throttle body outlet with included pipe and flange - Q: What material is the SSQV4 made from?
A: Die-cast aluminum body with anodized black coating and stainless steel springs for heat and corrosion resistance - Q: What is the warranty on this BOV kit?
A: HKS provides a 1-year limited warranty covering manufacturing defects when installed correctly
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Sturdy box measuring 13 x 9 x 6 inches
- Weight: 4.41 lbs
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