Process West Cold Air Intake 72mm Big MAF Subaru WRX / STI 2002-2007 | PWCAI05

Product Fitment:

2002-2007 Subaru WRX

2004-2007 Subaru STI

Unlock improved airflow and a more aggressive induction sound with the Process West 72mm Cold Air Intake, designed as a direct replacement for the factory intake system on 2002–2007 Subaru WRX and STI models. Engineered to reduce intake restriction, this system allows your EJ engine to breathe more efficiently—helping improve overall performance and throttle response.

By eliminating the restrictive factory airbox, this intake delivers a noticeable increase in intake sound, producing a deeper, more pronounced induction tone under acceleration without requiring additional modifications.

Constructed from lightweight CNC mandrel-bent aluminum tubing, the system ensures smooth, uninterrupted airflow. A precision-machined airflow meter mount allows you to retain the factory MAF sensor without modification, making installation simple and reliable. The intake is finished in a sleek black coating for a clean, OEM-style appearance under the hood.

Each kit includes a high-flow K&N air filter, providing improved airflow and long-lasting filtration compared to the stock unit.

Designed for convenience, this intake is a true bolt-on upgrade—requiring no cutting or permanent modifications, making it ideal for both enthusiasts and daily drivers.

Key Features:

• Direct replacement for factory intake system

• 72mm intake diameter for improved airflow
  

• CNC mandrel-bent aluminum intake piping

• Machined mount retains factory MAF sensor

• Includes high-flow K&N air filter

• Durable black finish for OEM-style appearance

• No cutting or permanent modifications required

Performance Benefits:

• Reduces intake restriction for better airflow

• Improves throttle response and engine efficiency

• Enhances induction sound under acceleration

• Maintains reliable filtration with reusable filter

Construction & Design:

• Lightweight aluminum tubing

• Smooth airflow path for maximum efficiency

• Precision-engineered fitment

• Clean, factory-style finish