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COBB

COBB SUBARU AIRBOX STI 2019-2021, STI TYPE RA 2018

$ 290.00
Shipping calculated at checkout.

Short Description

Upgrade your STI with the COBB SF Airbox, a high-quality cold air solution designed to reduce heat soak and prevent water ingestion while maintaining OEM fitment and airflow efficiency.

Pickup available at SHOP HQ

Usually ready in 5+ days

Delivery and Shipping

Domestic orders typically arrive within 3-7 business days, while international orders may take 7-14 business days. *Please note that additional time may be required for items that are drop shipped or back-ordered. If an item is out of stock, we will contact you in 3-5 business days with an estimated ETA or alternative product options.

Price Match Guarantee

We strive to offer competitive pricing and will price match qualifying competitors under certain conditions. Learn more here

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.

Specifications

Fitment Subaru STI 2019–2021, STI Type RA 2018

Construction 16-gauge aluminum with one-piece surround

Finish Raw aluminum with directional lid

Compatibility Designed to enclose COBB SF Intake

Cold Air Routing Utilizes factory snorkel and includes OEM air duct

Water Protection Prevents water ingestion unlike in-fender CAI systems

Installation Includes stainless hardware and requires no cutting

Air Duct Note OEM duct required for 2018 Type RA & 2019–2020 STI (included)

Install Instructions
Cobb Tuning

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