3-Port Boost Control Solenoid (BCS)

• 2009-2013 Subaru | Forester XT
• 2008–2021 Subaru | WRX STI
• 2005-2009 Subaru | Legacy GT
• 2008–2014 Subaru | WRX

The COBB Tuning 3-Port Boost Control Solenoid (715750) delivers precise, repeatable boost control for turbocharged Subaru applications by eliminating OEM boost fluctuations. It mounts in the factory location, plugs into the stock wiring harness, and supports stable control from stock boost levels through high-boost builds when paired with a custom tune.

• Construction: Compact waterproof solenoid with 1/8-inch nickel-plated low-profile barb fittings, Viton spools and seals, and a sealed manual override.
• Installation: Plug-and-play 18-gauge harness, custom aluminum bracket, stainless hardware, boost line, zip ties, and routing instructions for internal or external wastegates; installation effort is Very Easy.
• Performance: Accurate and consistent boost control, rated to 120 psi; optional 1/4-inch fittings are available separately.
• Confirmed fitment: 2008-2014 Subaru WRX; 2008-2021 Subaru WRX STI; 2005-2009 Subaru Legacy GT; 2005-2009 Subaru Outback XT; and 2009-2013 Subaru Forester XT. Exact model, transmission, body style, and market entries are listed in COBB's application guide.
• Tuning and emissions: Custom tuning is required for safe operation. This product is legal for sale and use on emissions-controlled vehicles in all 50 states when used according to the application guide; CARB EO D-660-261.
• What's included: BCS unit, aluminum bracket, stainless hardware, boost line, zip ties, and instructions.
• Warranty: COBB MFG Warranty.
• References: Official COBB product page and Installation instructions.

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• COBB MFG Warranty

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