The COBB SF Intake System is a proven upgrade for the 20152021 Subaru WRX, designed to improve airflow, support increased power output, and maintain accurate MAF readings for reliable performance. This system replaces the restrictive factory airbox with a high-flow solution that integrates seamlessly with COBB Off-The-Shelf (OTS) maps.

The airbox is crafted from black powder-coated aluminum and utilizes the factory hood scoop to direct air through a pre-oiled cone filter. The intake air then flows into a velocity stack MAF housing with a built-in airflow straightener to reduce turbulence and ensure precise sensor readings. Its one-piece, high-temperature plastic composite housing minimizes heat soak and weight.

Designed with both performance and tuning in mind, this intake system is compatible with COBB maps labeled “+SF” and requires no custom calibration for basic setups. Whether youre seeking throttle response, improved sound, or a stepping stone toward bigger builds, the COBB SF Intake delivers balanced performance and everyday drivability.

50 State Legal.

Whats in the Box

• COBB SF Intake system with airbox
• Velocity stack MAF housing
• Pre-oiled filter
• Silicone couplers
• Clamps
• Installation hardware

Fitment

• 20152021 Subaru WRX

Installation

• Difficulty:
• Time: 3060 minutes
• Instructions:[View Here]

Warranty

• COBB Limited Warranty

Looking for a replacement filter? You can find it here:Cobb [15-21 WRX] Intake Replacement Filter | 7M1102