Subaru WRX STI Performance Air Intake - COBB SF Intake + Airbox (2008–2011). This short-ram intake and airbox combo improves airflow and drivability when paired with the proper tune.

Built for the 08–11 STI, the SF Intake features a precisely sized MAF housing with an integrated air straightener to promote accurate readings. The matched airbox draws fresh air from the factory duct and helps shield the filter from engine bay heat. Expect sharper throttle response, more pronounced induction and turbo spool, and clean bolt-on fitment using quality hardware. For best results and engine safety, use an appropriate Accessport map or a professional custom calibration.

Features

• Direct bolt-on fit for 2008–2011 Subaru WRX STI
• Includes SF intake, airbox, and installation hardware
• Calibrated MAF housing with air straightener
• Heat-shielding airbox uses OEM fresh-air duct
• High-flow filter with noticeable induction sound
• Tuning required; COBB or custom maps recommended

Questions or need guidance on your build? Call us—we offer installation and customization at our Austin, Texas and Los Angeles, California area shops: 512-982-9393 (TX), 562-981-6800 (CA). If you are considering multiple items, contact us for shipping discounts. We install on premises at both locations.

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