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SKU: B712665 | UPC: 700424677191
Cobb 02-07 Subaru WRX 04-17 Subaru STI / 06-08 FXT Bypass Valve
The Cobb XLE Bypass Valve (BPV) replaces the factory plastic unit on Subaru turbo models for dependable boost control. It fits 2002-2007 Impreza WRX, 2004-2017 Impreza WRX STI, and 2006-2008 Forester XT with direct bolt-on installation. This aluminum piston design prevents boost leaks and supports high-pressure setups up to 43 PSI.
Key Features
- 54mm Aluminum Piston: Seals tightly against the housing to eliminate compressor surge and maintain consistent boost delivery during shifts.
- Four Interchangeable Springs: Includes 7 PSI yellow, 10 PSI red, 14 PSI white, and 18 PSI green springs to match your boost level precisely.
- Billet 6061-T6 Aluminum Body: Machined for strength and corrosion resistance, enduring extreme turbo pressures without failure.
- 43 PSI Boost Capacity: Handles continuous high-boost operation, ideal for tuned engines and larger turbos.
- OEM Mounting Compatibility: Bolts directly into factory locations with no modifications for quick setup.
Product Notes
- Select spring based on peak boost pressure for optimal valve response.
- Pair with ECU tuning for maximum reliability under elevated boost.
Installation Notes
- Professional installation recommended.
- Remove stock BPV and install new unit in 30-45 minutes with basic tools.
- Compatible with stock intake and intercooler piping includes O-ring seals.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2007 | Subaru | Impreza WRX | STI |
| 2008-2014 | Subaru | Impreza WRX | STI |
| 2015-2017 | Subaru | WRX STI | All |
| 2006-2008 | Subaru | Forester | 2.5 XT |
Why Choose Cobb?
- Two decades of Subaru-specific engineering and real-world testing.
- Components built to withstand track and rally conditions.
- Precision CNC machining ensures exact tolerances for long-term durability.
Frequently Asked Questions
-
Q: Will this fit my 2015 STI?
A: Yes, it installs directly on 2004-2017 STI models including sedan and hatchback variants with TD04/TD05/VF series turbos. -
Q: What material is the piston made from?
A: The piston is hard-anodized aluminum for smooth operation and resistance to wear from high-speed cycling. -
Q: What is the warranty and install process?
A: Backed by Cobb's 2-year limited warranty bolt-on design reuses factory hardware with included gaskets.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: 7 x 5 x 5 inches box with foam protection
- Weight: 1.1 lbs
COBB
COBB Tuning parts for turbocharged performance platforms are stocked at Black Ops Auto Works. Shop the Accessport ECU programmer, cold air intakes, cat back exhaust systems, and supporting hardware engineered for Subaru WRX and STI, Ford Focus ST and RS, Ford F-150 EcoBoost, Mazdaspeed3 and 6, Nissan GT-R, Porsche, BMW, and Volkswagen platforms. Every product is filterable by year, make, model, and trim so the correct part ships the first time. Black Ops Auto Works carries 372 COBB SKUs across tuning, intake, and exhaust categories. What This Brand Covers COBB Tuning built its reputation on the Accessport, one of the most widely used ECU flash tools in the aftermarket, and has expanded into intakes, exhausts, downpipes, and supporting hardware for a range of turbocharged platforms. The catalog centers on a defined group of import and Euro performance vehicles rather than a single brand family. Brand Focus COBB Tuning parts are engineered primarily for Subaru, Ford, Mazda, Nissan...
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