COBB Airbox Assembly for Subaru STI (2018–2021), Including Type RA Variant

Description

Enhance your Subaru STI’s performance and reliability with the COBB SF Airbox, designed specifically for the 2018–2021 STI and 2018 STI Type RA. Constructed from durable 16-gauge aluminum, this intake airbox features a one-piece surround, directional lid, and stainless steel hardware for a precise OEM-quality fit. It integrates seamlessly with the factory intake ducting to create a true cold air system—without the risks associated with traditional in-fender setups.

The COBB SF Airbox helps deliver consistent intake air temperatures by shielding the intake from hot engine bay air, while still drawing in cold air directly from the front grille. Included in this kit is a genuine Subaru OEM air duct that routes fresh air from behind the grille into the airbox, ensuring optimal airflow and safe, water-free operation—even in harsh weather conditions. This design protects against rainwater ingestion while maintaining the performance benefits of a cold air intake.

Whether you’re upgrading your intake setup or completing your COBB SF Intake system, this airbox adds functionality, performance, and peace of mind.

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