Subaru WRX Performance Air Intake - COBB - Big SF - 2015-2021. A high-flow intake engineered for the FA20 DIT WRX, built to increase airflow capacity and maintain a clean, factory-like fit.

The COBB Big SF combines a larger MAF housing with a high-flow filter and an airbox bracket that integrates with the OEM inlet path. This setup provides stable MAF readings at higher volume and a more pronounced turbo induction sound, while the bracket helps position and isolate the filter from underhood heat. For correct operation, proper ECU calibration is required; use an appropriate COBB Accessport Big SF map or a custom tune.

Features

• Fits 2015-2021 Subaru WRX (FA20 DIT)
• Larger MAF housing for increased airflow and accurate metering
• High-flow, serviceable filter
• Airbox bracket for secure mounting with factory snorkel
• Bolt-on installation with common hand tools
• Designed to work with Big SF-specific tuning

Have questions or need guidance for your setup? Call us anytime. Our teams in Austin, Texas and the Los Angeles, California area offer professional installation and customization services. Texas: 512-982-9393. California: 562-981-6800.

If you are considering multiple items, please contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov