COBB Cold Air Intake

The COBB SF Blue Intake & Air Box for your 2015 Subaru WRX STI is built with a large, 4-inch diameter intake tube. This substantial tubing allows for a much smoother path for air entering your engine compared to the restrictive factory intake. By reducing turbulence and increasing the volume of air that can reach the turbocharger, this system helps your engine breathe more freely, which can lead to improved throttle response and a more satisfying engine note under acceleration.

This intake system features a well-built, powder-coated aluminum air box that helps to isolate the air filter from engine bay heat. This is crucial for a cold air intake, as it ensures that the engine is drawing in cooler, denser air. Cooler air contains more oxygen, which your engine can use for a more efficient combustion process. The air box is designed to fit snugly in the engine bay, and the included COBB High-Flow Filter is a reusable, washable unit that captures debris effectively while allowing ample airflow. The blue powder coating on the air box adds a clean, custom look to your engine bay.

Installation involves removing the factory intake components and installing the COBB SF Intake & Air Box in their place. While it's a direct replacement for the stock airbox and intake tube, it's always a good idea to refer to the manufacturer's installation instructions for specific details and recommended procedures. This system is designed to work with the factory tuning, but for optimal performance gains, it's often paired with a COBB Accessport and a custom tune tailored to the intake's airflow characteristics.