Cobb 15-18 Subaru WRX STI Airbox subaru-forester-xt-2013 The SF Air Box adds

The SF Air Box adds the benefits of a cold air intake to the outstanding performance of the SF Intake

Black Urethane

and all the necessary components for a seamless install with OEM quality fit and finish

A plug-and-play adapter provides OEM-level integration for the PCV connection

Fuel Pressure Regulator Manifold Reference Relocation Kit Improved Vacuum Reference for the FPR - Plenum Based (COBB) vs

Cobb 15-18 Subaru WRX STI Airbox subaru-forester-xt-2013 The SF Air Box addsThe SF Air Box adds the benefits of a cold air intake to the outstanding performance of the SF Intake. The factory inlet directs cold air from the front grill to the SF Airbox, which encloses the SF Intake. Hot engine bay air that robs horsepower is prevented from entering the intake system to provide consistent intake performance. This unique design also separates rainwater from the intake air, eliminating the water ingestion issues that plague in