SKU: cobb715750 Cobb 3-Port Boost Control Solenoid for WRX/STI Hatch, STI Sedan

Cobb 3-Port Boost Control Solenoid for WRX/STI Hatch, STI Sedan

The COBB Tuning 3-Port Boost Control Solenoid (BCS) is an essential upgrade for turbocharged Subaru, Mazda, and Mitsubishi vehicles, offering precise boost control in a compact and easy-to-install package. Designed to eliminate boost fluctuations and boost creep common in OEM systems, the COBB 3-Port BCS ensures stable and repeatable boost control for accurate tuning and consistent performance. With an operating range of up to 120psi, it delivers reliable boost control at both stock levels and the high pressures required by big-power builds.

Engineered for durability, the COBB BCS features low-profile 1/8" nickel-coated barb fittings for corrosion resistance, with optional 1/4" fittings available separately. It incorporates Viton spools and seals lubricated with Dow Corning silicone grease for extended service life. The device is fully waterproof, thanks to its sealed manual override port, ultrasonically welded solenoid wires, and grommet-sealed wiring harness, ensuring safety and reliability even in harsh conditions.

Installation is straightforward, with the BCS mounting in the stock location and plugging directly into the factory wiring harness. The package includes a custom aluminum mounting bracket, stainless steel hardware, boost-line for all connections, and zip-ties for clean routing through the engine bay. Clear instructions, complete with photographs and illustrations, simplify the process for both internal and external wastegate configurations.

The COBB Tuning 3-Port BCS is the ultimate electronic boost control device, delivering outstanding performance, long-lasting reliability, and hassle-free installation. Take control of your turbocharged Subaru, Mazda, or Mitsubishi and unlock its true potential with the COBB 3-Port BCS.