SUBARU 3-PORT BOOST CONTROL SOLENOID (BCS) WRX 2015-2021

Unlock precise and reliable boost management with the COBB 3-Port Boost Control Solenoid (BCS) for the 2015–2021 Subaru WRX. This electronic boost controller is designed to deliver consistent and repeatable boost levels across a wide range of setups—from stock configurations to high-performance big turbo builds. Unlike the factory solenoid, which is prone to fluctuation, the COBB BCS offers ultra-stable boost control, allowing tuners to dial in aggressive and dependable performance. Constructed with high-end materials like nickel-coated 1/4" barbed fittings and Viton-sealed internals, this BCS is built for durability and long-term use. It’s fully waterproof and rated for up to 120 psi, making it ideal for both daily drivers and motorsports applications. The plug-and-play harness ensures hassle-free installation with your factory wiring, and it mounts neatly in the stock location using the included billet aluminum bracket. While tuning is required, the COBB BCS integrates seamlessly w