MY15-21 WRX CAI with K&N Filter

The Process West Cold Air Intake is a direct replacement for the factory air intake on the 2015–21 VA WRX, engineered to reduce intake restriction and improve airflow into the FA-series engine.

Improved intake sound.

Replacing the factory air box with the Process West Cold Air Intake delivers a noticeable improvement in intake sound. The less restrictive airflow path produces a more pronounced induction note under acceleration, adding to the driving experience without any additional modification.

Precision engineered construction.

Built from lightweight CNC mandrel bent aluminium tubing with a machined airflow meter mount, allowing the factory airflow meter to be retained without modification. Finished in a clean black coating for a purposeful, factory-quality appearance under the bonnet.

High-flow filtration included.

A K&N high-flow air filter is included with every kit, delivering improved airflow and long-term filtration performance over the factory unit.

Straightforward installation.

Designed as a direct replacement for the factory intake with no cutting or permanent modification required.

A clean, effective intake upgrade for the 2015–21 Subaru VA WRX.