Turbo XS W15-BCS 3-Port Boost Control Solenoid for 2015-2021 Subaru WRX FA20

Vehicle Fitment

• 2015-2021 Subaru WRX (Base/Limited/Premium, FA20 2.0L Turbocharged, AWD)

Features

• Replaces factory 2-port boost solenoid with precise 3-port electronic control
• Optimizes boost management for smoother performance post-front pipe/downpipe upgrades
• Plug-and-play installation - no tuning changes necessary post-install
• Improves throttle response and reduces compressor surge
• Durable design engineered for high-performance tuning environments
• Compatible with both factory and aftermarket ECU setups
• Compact form fits easily within existing engine bay layout
• Backed by Turbo XS quality and warranty

Specifications

• Type: Electronic 3-Port Boost Control Solenoid
• Material: High-strength composite housing with aluminum internals
• Fitment: 2015-2021 WRX (FA20 engine)
• Installation: Direct factory-replacement; ~20-minute install
• Weight: ~0.9 lb (0.41 kg)
• Dimensions: ~5.5" x 5.3" x 5.7" (WxHxD) :contentReference[oaicite:1]{index=1}
• Warranty: Manufacturer's limited warranty
• CARB Legal: No - Not for sale/use in California :contentReference[oaicite:2]{index=2}

Included Components

• 1x W15-BCS Boost Control Solenoid
• 1x Mounting bracket
• 1x Wiring pigtail adapter
• 1x Hardware kit (bolts, washers)
• 1x Installation instructions

Product Description

The Turbo XS W15-BCS electronic 3-port boost control solenoid is specifically engineered for 2015-2021 Subaru WRX models with the FA20 2.0L turbo engine. It replaces the OEM 2-port solenoid, delivering more precise boost modulation - essential for drivers upgrading to aftermarket front pipes or tuning for higher boost:contentReference[oaicite:3]{index=3}.

This unit installs in about 20 minutes, using factory mounting points and connectors. It's built to withstand higher performance demands and ensures consistent throttle response while reducing compressor surge. Whether you're tuning stock or performance setups, this solenoid enhances boost control reliability:contentReference[oaicite:4]{index=4}.

Please note: W15-BCS is not CARB-certified and therefore is not sellable in California. Ideal for enthusiasts seeking trustworthy and responsive boost management on tuned FA20 WRX platforms.