K&N Engineering Performance Intake System
Fits 2018 Subaru WRX STI H4-2.5L Turbocharged
Part #: 69-8009TWR
Overview
The K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake is designed to enhance your vehicle’s airflow, delivering improved throttle response and a more aggressive engine sound. Crafted for enthusiasts seeking to optimize their Subaru’s performance, this intake system combines durability with functional design to support your driving experience. Whether you're looking for increased horsepower or a more engaging driving feel, this intake offers a reliable upgrade that complements your vehicle’s turbocharged engine.
Key Features
This intake system features a mandrel-bent aluminum intake tube for smooth airflow and a washable, reusable High-Flow Air Filter with oiled cotton media for long-lasting performance. The oversized, conical filter design allows for up to 100,000 miles of service under normal highway conditions, reducing maintenance frequency. A custom heat shield or air box helps protect intake air from engine bay heat, ensuring cooler, denser air reaches the engine for optimal combustion. The system is engineered for a straightforward installation, providing a direct bolt-on upgrade that requires minimal modifications.
Construction & Design
The intake utilizes high-quality aluminum tubing with precise mandrel bends to maximize airflow efficiency. The heat shield is designed to effectively block hot engine bay air, maintaining cooler intake temperatures. The filter features durable oiled cotton media, ensuring consistent filtration and airflow over its service life.
Driving Feel & Feedback
This intake system helps improve throttle response and engine sound, giving your Subaru WRX STI a more aggressive and sporty character. The enhanced airflow supports a more lively driving experience, making every acceleration feel more immediate and satisfying.
Installation & Fitment
Designed for a direct bolt-on fit, this intake system installs with basic hand tools and requires no cutting or welding. It is tailored specifically for the 2018 Subaru WRX STI with the H4-2.5L turbocharged engine, ensuring a secure and precise fit.
What’s Included
The package includes the mandrel-bent aluminum intake tube, high-flow washable filter, heat shield or air box, and all necessary hardware for installation.
