Cobb Subaru Airbox - 2019-2021 Subaru STI / STI Type RA 2018 Brake Ducts System Type: 3" valved cat-back

System Type: 3" valved cat-back exhaust

dual-wall titanium tip is rolled and riveted over a double-pipe diffuser structure to help reduce exit temperatures while delivering the signature heat-gradient look

Full Dry Carbon Construction: Premium dry carbon finish delivers a lighter

Durable Construction: Lightweight

Alignment range and final settings may vary based on ride height

Cobb Subaru Airbox - 2019-2021 Subaru STI / STI Type RA 2018 Brake Ducts System Type: 3" valved cat-backThe SF Airbox 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