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Process West Cold Air Intake w/ K&N Filter – Subaru WRX & STI (1997–1998)
The Process West Cold Air Intake is designed to unlock more power and enhance induction sound on your EJ-powered Subaru. By replacing the restrictive factory intake, this system allows greater airflow to the turbocharger, improving throttle response and overall engine performance.
Key Features
- Lightweight CNC mandrel-bent aluminium intake tubing
- Precision CNC-machined airflow meter mount for factory sensor compatibility
- Includes a high-flow K&N performance air filter
- Durable black powder-coated finish for an OEM-style look
- Direct bolt-on fitment with no cutting or drilling required
Performance Benefits
- Improved horsepower and torque potential
- Sharper throttle response and enhanced engine breathing
- Sportier induction sound under acceleration
Vehicle Compatibility
Subaru WRX (1997–1998) – EJ20 Turbo
Subaru WRX STI (1997–1998) – EJ20 Turbo
Note: ECU recalibration is recommended after installation to achieve optimal performance and maintain correct air-fuel ratios.
No instructions available for this product.

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