Benefits:
- Pull ahead of the competition with an aFe Sealed Intake for your STI.
- Give your engine that intoxicating induction noise!
- Improve the look of your engine bay.
- Better gas mileage makes it easier to sell your significant other on.
- Cleanable air filter for low cost maintenance.
Features:
- Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ
- Innovative Filter-to-Housing Interface and Minimal Hardware for Fast and Easy Installation (Roughly 30 Minutes)
- Clear Sight Window for Convenient Filter Inspection Without Disassembly
- Outflows Factory Intake by 56%
- Washable and Reusable Pro 5R Air Filter for Maximum Performance
- Measured Flow: 320 CFM @ 7" H2O
- Sealed Housing Captures Cool Air From Included Dynamic Air Scoop and Fender Well
Applications:
- 2018-2021 Subaru WRX STI H4 2.5L (t) Gas
Application Notes:
- Emissions Disclaimer: This product is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicles. This product is not legal for street use in the following states - Arizona, California, Connecticut, District of Columbia, Maine, Maryland, Massachusetts, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont, and Washington.
- Installation Instructions
- Dyno Chart
- Filter Airflow Chart
Description:
Hassle-Free Installation:
Stainless-steel clamps and silicone couplings are included for strength and durability. Momentum intakes are designed with fewer parts for a fast and easy installation.
Unique One-Piece Housing:
The smooth one-piece sealed housing, constructed of heat-resistant cross-linked polyethylene (XLPE) polymer, features our patent-pending filter-to-housing interface. Its innovative design minimizes the total number of parts, making for an easy installation. A large, clear sight window allows for hassle-free filter inspection, without having to disassemble your system. The system captures cool air with an included Dynamic Air Scoop at the front of the vehicle and an additional air inlet in the vehicle's fender well.
Large Five Layer Performance Air Filter:
Momentum’s innovative filter-to-housing interface was built to feature the largest air filter possible. This 7-1/2” tall 360-degree radial flow air filter features a 3-1/2" flange and our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. It provides your engine with the largest amount of high-flowing air and delivers the highest power gains in most cases. This media is perfect for street and/or track use. Its inverted top makes for more filter surface area, resulting in longer service intervals.
Dyno-Tuned Intake Tube:
This system features a high quality, computer-designed, dyno-tuned intake tube to achieve maximum power gains while maintaining a perfect fit. Its XLPE material is heat soak resistant and extremely durable.