Cold Air Intake For Scion xB (2008-2015) with 2.4L Engine

High-Velocity Air Induction: Optimizing the Scion xB 2.4L 2AZ-FE Powerplant

Who It’s For: Engineered for 2008-2015 Scion xB owners running the 2.4L 2AZ-FE powerplant who are tired of the stock sluggishness and want more urgent throttle response from their boxy daily driver.

The Symptom: The Scion xB is a heavy, aerodynamic challenge for a naturally aspirated four-cylinder. The factory intake system is designed primarily for sound suppression, utilizing restrictive resonator boxes and corrugated “accordion” hosing that creates massive air turbulence. This turbulence slows down the air column, leading to that disconnected, laggy feeling when you try to merge into fast-moving traffic or maintain speed on a steep grade.

The Engineering Fix: This system solves the air-starvation issue by replacing the restrictive plastic maze with a smooth-bore, mandrel-bent T304 aluminum tube. By removing the factory baffles, we facilitate laminar flow—a straight, high-velocity path that allows air to reach the combustion chamber with less resistance. By relocating the filter to draw in cooler air, we increase the oxygen density, allowing the 2AZ-FE to maximize its volumetric efficiency and respond instantly to your right foot.

Why Mechanics Choose This Kit

• Enhanced Torque Curve: Realizes gains of up to 10% in horsepower and torque, providing the necessary grunt to move the xB’s chassis with less effort.
• Aggressive Induction Note: Eliminates the muffled factory sound in favor of a deep, throaty roar that resonates specifically when the engine is under load.
• Superior Filtration: Features a high-flow cotton media filter that is fully washable and reusable, designed to go up to 50,000 miles between cleanings while maintaining high-cfm flow.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2008 Scion xB 2.4L 4-Cyl (Manual & Auto)
• 2009 Scion xB 2.4L 4-Cyl (Manual & Auto)
• 2010 Scion xB 2.4L 4-Cyl (Manual & Auto)
• 2011 Scion xB 2.4L 4-Cyl (Manual & Auto)
• 2012 Scion xB 2.4L 4-Cyl (Manual & Auto)
• 2013 Scion xB 2.4L 4-Cyl (Manual & Auto)
• 2014 Scion xB 2.4L 4-Cyl (Manual & Auto)
• 2015 Scion xB 2.4L 4-Cyl (Manual & Auto)

Interchange Part Numbers:

2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2.4, 2.4L, 2AZ-FE

The Performance Promise

Buy with confidence. This kit is designed for a precise bolt-on fit, typically taking less than 60 minutes with basic hand tools. We recommend disconnecting the battery during installation to allow the ECU to recalibrate for the increased oxygen density and flow. Backed by real automotive experts and fast shipping.