COBB [02-07 WRX, 04-07 STI, 04-08 FXT] 3-Port Boost Control Solenoid | 712750

Description

The COBB 3-Port Boost Control Solenoid (BCS) is designed to deliver precise and consistent boost control for modern turbocharged Subaru vehicles. This upgrade eliminates boost fluctuations common in the OEM boost control system, providing stable and repeatable boost levels suitable for both stock and high-boost applications.

The BCS features 1/8″ low-profile nickel-plated barb fittings for compactness and corrosion resistance. It also uses Viton spools and seals for long-lasting durability, with all components sealed for waterproof performance. Rated to operate up to 120psi, it ensures reliable performance in demanding conditions.

Installation is simple with a plug-and-play 18-gauge wiring harness, custom aluminum mounting bracket, stainless steel hardware, and boost line for all connections. It mounts directly in the stock location and integrates with the factory wiring harness.

Emissions:

• Legal under EPAs Anti-Tampering Policy

• Not legal for sale or use in California on any emission-controlled motor vehicle

• 50-state compliance pending with California Air Resources Board (CARB)

Quick Specs:

• Brand: COBB Tuning

• Product Type: 3-Port Boost Control Solenoid (BCS)

• Fitment:

  • Subaru WRX 02-07

  • Subaru STI 04-07

  • Subaru FXT 04-08

• Features:

  • Accurate and consistent boost control

  • Plug-and-play 18-gauge wiring harness

  • 1/8″ nickel-plated barbed fittings

  • Custom aluminum mounting bracket

  • Rated up to 120psi

  • Waterproof and corrosion-resistant construction

• Tuning Required: Yes (Download OTS map or contact Protuner)

• Warranty: Manufacturers warranty

What’s in the Box:

• (1) COBB 3-Port BCS

• (1) Aluminum Mounting Bracket

• (2) 1/8″ Nickel-Plated Barbed Fittings

• (1) Plug-and-Play Wiring Harness

• (1) Boost Line

• (1) Set of Stainless Steel Hardware

• (1) Set of Zip Ties

• Installation Instructions

Why?
The COBB 3-Port BCS provides the flexibility and precision needed for boost control when upgrading turbocharging systems. It ensures consistent boost levels, making it an essential component for big-power builds and performance tuning.

Note:
Ideal for high-boost applications and turbocharger upgrades requiring precise boost control.