K&N Engineering 69-8009TWR Typhoon Cold Air Intake for 2018-2021 Subaru WRX STI 2.5L

Gain a guaranteed increase in horsepower and torque with a K&N cold air intake system featuring a mandrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield or air box helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 90 minutes. Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle. K&N's mandrel-bent aluminum cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the K&N No-Hassle Lifetime Limited Warranty. Associated products: RU-5163 Universal Clamp-On Air Filter, 99-5000 Filter Care Service Kit Aerosol

• K&N Million Mile Limited Warranty
• Will not void vehicle warranty.

Upgrade the airflow and performance potential of your Subaru WRX STI with the K&N Engineering 69-8009TWR Typhoon Performance Intake. Designed for the 2.5L horizontally opposed four-cylinder engine, this cold air intake system uses a mandrel-bent aluminum intake tube to promote smooth, efficient airflow while helping deliver a guaranteed increase in horsepower and torque. The system is engineered as a direct performance upgrade for enthusiasts seeking sharper throttle response and improved engine breathing.

An oversized, conical K&N High-Flow Air Filter uses washable and reusable oiled cotton filter media, allowing service intervals of up to 100,000 miles under normal highway driving conditions. A custom heat shield or air box helps isolate the intake tract from hot engine-bay air, supporting cooler and denser intake air during operation. The intake can typically be installed in less than 90 minutes using common hand tools, making it a practical upgrade for street-driven performance vehicles.

The K&N Engineering 69-8009TWR is covered by the K&N Million Mile Limited Warranty and is designed not to void the vehicle warranty. This application is not approved for sale or use on pollution-controlled vehicles in California; a required emissions acknowledgement applies. Always verify local emissions requirements before installation. Fitment includes 2018, 2019, 2020, and 2021 Subaru WRX STI models equipped with the 2.5L engine. Associated products include the RU-5163 Universal Clamp-On Air Filter and 99-5000 Filter Care Service Kit Aerosol.

What's Included

• Mandrel-bent aluminum intake tube
• Washable and reusable K&N High-Flow Air Filter
• Vehicle-specific heat shield or air box
• Installation hardware and components
• Installation instructions

Features:

• Guaranteed Performance Increase: Designed to provide an increase in horsepower and torque for the Subaru WRX STI 2.5L engine.
• Mandrel-Bent Aluminum Tube: Promotes smooth airflow through the intake tract while providing durable performance use.
• Washable High-Flow Filter: Reusable oiled cotton filter media supports high airflow and service intervals of up to 100,000 miles under normal highway conditions.
• Heat Protection: A custom heat shield or air box helps reduce exposure to hot engine-bay air for more consistent intake performance.

Fitments:
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI Base
2019 Subaru WRX STI Limited
2019 Subaru WRX STI S209
2020 Subaru WRX STI Base
2020 Subaru WRX STI Limited
2021 Subaru WRX STI Base
2021 Subaru WRX STI Limited

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1