SW Speed Co. 75mm Big MAF Housing for Cobb SF Intake

Maxed out your MAF sensor? It’s time to let your engine breathe.

When you start pushing serious boost, the standard Cobb 67mm MAF housing quickly becomes a bottleneck, causing your MAF sensor to max out its voltage and limit your tuning potential. The SW Speed Co. 75mm Big MAF Upgrade is engineered to eliminate that restriction, providing the airflow volume and precise sensor readings you need to support high-horsepower builds.

Designed as a direct drop-in upgrade, this housing integrates seamlessly with your existing Cobb SF intake components (SEE FITMENT), saving you the hassle and cost of buying an entirely new intake system.

Features

• 75mm High-Flow Diameter: We’ve increased the internal diameter from the standard 67mm to a massive 75mm, increasing airflow capacity to safely support builds pushing up to 500 HP.

• Integrated Velocity Stack: The inlet features a smooth velocity stack design to draw air in efficiently, drastically reducing turbulence before it hits the sensor for cleaner, more accurate MAF readings.

• Post-MAF Venturi Design: After the air is metered, a built-in venturi gently tapers the airflow, accelerating the air column directly into your turbo inlet to reduce lag and improve throttle response.

• Cobb SF Compatible: No need to ditch your current setup. This housing perfectly adapts to your existing Cobb SF air filter and intake hardware. SEE FITMENT

Fitment

• 2002–2007 Subaru WRX

• 2004–2007 Subaru STI

• 2004-2008 Subaru Forester XT

• 2005–2009 Subaru Legacy GT

• 2005–2009 Subaru Outback XT

• 2004–2006 Subaru Baja Turbo
  

*Coming Soon* 2008+ WRX/STI Compatibility

⚠️ IMPORTANT FITMENT & TUNING NOTE: Because this housing increases the diameter over the standard Cobb SF design, it alters the amount of air bypassing the sensor. Custom engine tuning (MAF Rescaling) is strictly required immediately after installation to prevent severe engine damage. Do not run this intake on a stock or off-the-shelf (OTS) tune. SW Speed Co. is not liable for any engine damage as a result of improper installation or tuning.

Includes

1X SW Speed Co. 75mm Big MAF Housing