AEM Cold Air Intake (Polished) - 2006-2007 Subaru WRX / 2006 Subaru STI

AEM 21-477P is an application-specific cold air intake for 2006-2007 Subaru WRX / 2006 Subaru STI. It replaces restrictive factory intake components to provide a revised airflow path to the engine.

Technical Highlights

• Mandrel-bent aluminum intake tubing.
• Tube finish: Polished.
• Washable AEM Dryflow synthetic air filter.
• Oil-free filter media; no filter oil is required after cleaning.
• Provisions for mass airflow sensor.

Installation & Compatibility

Confirm engine, trim, sensor arrangement, and the applicable fitment entries before ordering. Install all retained factory connections and check for air leaks before operation. Inspect the filter according to operating conditions; dusty environments and track use can require more frequent service. Emissions eligibility depends on the exact vehicle application; do not assume approval from the intake family name.

Vehicle Fitment

Match the engine, trim, and required connections as well as the model year.