The COBB 15-21 Subaru WRX 3-Port Electronic Boost Control Solenoid does not have enough exact application evidence to assign safe vehicle YMM. Match manufacturer part number 714750, complete vehicle, engine and transmission configuration, factory equipment, required calibration, emissions eligibility, interfaces, and every product note before ordering.

Key Features

• High-Pressure Capability: Safely manages boost up to 40 PSI, supporting tuned setups with larger turbos or higher targets.
• 3-Port PWM Control: Provides precise electronic actuation for consistent boost levels, far beyond the stock solenoid’s 20 PSI limit.
• Durable Brass Construction: Features a robust brass body with stainless steel internals to withstand heat, pressure, and repeated cycling.
• Plug-and-Play Design: Bolts directly into the OEM location using factory brackets and connectors no cutting, splicing, or modifications required.
• Fast Response Time: Quicker solenoid opening and closing reduces lag, improving turbo efficiency across the RPM range.
• High-strength brass housing paired with stainless steel plunger and seals for corrosion resistance and longevity.

Fitment

Specifications

What’s Included

One new COBB product in the exact configuration and quantity identified by manufacturer part number 714750. Calibrations, hardware, hoses, clamps, gaskets, adapters, wiring, fluids, tools, and companion components are included only when expressly stated for this exact part number.

About COBB

COBB develops engine-management, intake, cooling, exhaust, drivetrain, suspension, and vehicle-accessory products for supported performance platforms. Correct selection remains exact-vehicle, exact-configuration, exact-interface, and exact-part-number specific.

Related COBB Products

• Cobb 04-07 Subaru STI / 02-07 WRX / 04-08 FXT 3-Port Boost Control Solenoid
• Cobb 08-12 Subaru WRX / 08-12 STI Hatch / 11-12 STI Sedan 3-Port Boost Control Solenoid
• Cobb 07-12 Mazda MS3 / 06-07 MS6 / 07-11 MPS3 / 04-06 MPS6 3-Port Boost Control Solenoid

Browse the COBB collection for related tuning, intake, cooling, exhaust, drivetrain, and chassis products.

Frequently Asked Questions

Why is fitment verification required for this COBB product?
Exact vehicle application evidence is not complete enough for safe YMM. Confirm the vehicle, drivetrain, factory equipment, calibration, emissions eligibility, interfaces, and exact part number before ordering.

Are all supporting parts included?
Only components expressly listed for the exact manufacturer part number are included. Tuning, hardware, hoses, clamps, gaskets, adapters, wiring, fluids, and companion components may be separate.

Is tuning or calibration required after installation?
Requirements depend on the exact product and vehicle. Intake, fuel, boost, turbo, and engine-management changes may require a compatible calibration before operation.

Installation Instructions

Follow the current COBB and factory service instructions for this exact part number. Verify fitment, factory equipment, emissions eligibility, required calibration, software and firmware, interfaces, hardware, fluid or electrical connections, and clearances before installation. Inspect the completed work and confirm safe operation before full-load use.