COBB SF Intake Airbox - 2018-2019 Subaru STI / 2018 STI Type RA

Maximize your STI's intake performance with the COBB SF (Sealed Feedback) intake airbox. Featuring a sealed design that draws cool air from outside the engine bay, this complete airbox system delivers improved airflow, reduced intake temperatures, and proven power gains for your 2018-2019 STI or 2018 STI Type RA.

Key Features:

• Sealed airbox design draws cool air from outside engine bay
• Improved airflow over factory airbox
• Reduces intake air temperatures
• Includes high-flow air filter
• Direct bolt-on fitment
• Maintains MAF sensor location for proper tuning
• Premium COBB quality
• Made in USA

Performance Benefits:

• Sealed Design: Draws cool, dense air from outside engine bay for maximum power
• Reduced Intake Temps: Cooler air contains more oxygen for improved combustion
• Improved Airflow: Less restrictive than factory airbox for better engine breathing
• Maintains MAF: Keeps MAF sensor in proper location for accurate tuning
• Direct Fitment: Bolt-on installation using factory mounting points
• Proven Performance: COBB-tested for reliable power gains

Specifications:

• Brand: COBB Tuning
• Part Number: 716100
• Product: SF Intake Airbox
• Design: Sealed airbox (draws air from outside engine bay)
• Filter: High-flow air filter (included)
• Weight: 8.5 lbs (complete kit)
• Made in: USA

Fitment Information:

• Compatible Vehicles:
• 2018-2019 Subaru STI (VAB chassis)
• 2018 Subaru STI Type RA
• Note: Direct bolt-on replacement for factory airbox

What's Included:

• COBB SF intake airbox
• High-flow air filter
• Mounting hardware
• Installation instructions

Installation Notes:

• Professional installation recommended
• Direct bolt-on - no cutting or modifications required
• Replaces factory airbox completely
• Installation time: approximately 60-90 minutes
• Professional tuning recommended for maximum performance

Sealed Airbox Design:

The COBB SF (Sealed Feedback) airbox features a sealed design that draws cool air from outside the engine bay rather than hot air from within. The sealed design uses the factory fresh air inlet to pull cool, dense air directly to the intake system. This results in lower intake air temperatures and more oxygen-rich air for improved combustion and power.

Reduced Intake Air Temperatures:

By drawing air from outside the engine bay, the SF airbox significantly reduces intake air temperatures compared to open-element intakes that draw hot air from the engine bay. Cooler air is denser and contains more oxygen, which allows for more efficient combustion and increased power output. The temperature reduction is especially noticeable during aggressive driving when engine bay temperatures soar.

Improved Airflow Over Factory:

The COBB SF airbox flows significantly more air than the restrictive factory airbox. The larger intake opening, optimized airbox design, and high-flow air filter reduce restriction and allow the turbocharged engine to breathe better. The improved airflow reduces turbo lag and improves throttle response throughout the RPM range.

Maintains MAF Sensor Location:

Unlike some aftermarket intakes that relocate the MAF (Mass Air Flow) sensor, the COBB SF airbox maintains the MAF sensor in its factory location. This ensures accurate airflow readings and proper engine tuning. The factory MAF location also makes the SF airbox compatible with COBB Accessport tuning and other aftermarket tuning solutions.

Why COBB Tuning?

COBB Tuning has been manufacturing premium performance parts for Subaru vehicles for over 20 years. Their products are engineered and manufactured in the USA to the highest quality standards. COBB products are known for proven performance gains, quality construction, and compatibility with COBB Accessport tuning. Every COBB product is tested extensively to ensure it delivers the performance and reliability enthusiasts expect.

Installation Tips:

• Disconnect negative battery terminal before beginning
• Remove factory airbox completely
• Install COBB SF airbox using factory mounting points
• Connect MAF sensor to airbox
• Connect fresh air inlet duct
• Verify all connections are secure
• Reconnect battery and start engine
• Check for proper fitment and operation
• Consider COBB Accessport tuning for maximum performance

Perfect For:

• 2018-2019 Subaru STI owners seeking improved intake performance
• 2018 STI Type RA builds requiring reduced intake temps
• Daily drivers seeking bolt-on performance upgrade
• Track day enthusiasts wanting proven power gains
• Anyone upgrading from restrictive factory airbox

Perfect For: 2018-2019 Subaru STI and 2018 STI Type RA owners seeking COBB SF intake airbox with sealed design, reduced intake temps, and improved airflow.

Pro Tip: The sealed design draws cool air from outside the engine bay - essential for maintaining low intake temps during aggressive driving.

Made in USA: Premium COBB quality. Direct bolt-on installation. Pair with COBB Accessport for maximum performance.

Maximize your STI's performance with COBB SF airbox - sealed design, reduced intake temps, improved airflow, maintains MAF location, direct fit, made in USA.