2018-2021 Subaru WRX STI Performance Air Intake System by K&N

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 60 minutes.

Features

• HP Gain: Up to 25.2 hp
• TQ Gain: Up to 11.4 lbs./ft.
• Series: 69 Series Typhoon
• Filter Color: Red
• Tube Finish: Red
• System Type: Cold Air Intakes
• Material: Aluminum
• Replacement Filter: RU-5163
• Mandrel-bent aluminum intake tube paired with oversized oiled cotton air filter

Benefits

• Guaranteed to increase horsepower
• Engineered to provide high airflow and exceptional filtration
• Replaces factory air filter and intake tube
• Filter only requires cleaning every 100,000 miles under normal highway driving conditions
• Typical installation can be completed in 60 minutes or less with simple hand tools

Applications

• 2018-2021 Subaru WRX STI

What’s In The Box?

• 1 – Air Intake System
• 5 – Clamps
• 2 – Couplers

References

• Installation Instructions
• Dyno Chart – 2018 Subaru WRX STi 2.5L – 25.2HP Increase

Warranty

• 1,000,000 Miles/10 Year Limited Warranty