Description
The aFe Takeda Momentum 56-70014R Cold Air Intake System delivers significant airflow and performance gains for the 2018–2021 Subaru WRX STI. Engineered with a sealed XLPE polymer housing, massive 7.5-inch radial flow filter, and a dyno-tuned intake tube, this system is designed to feed your EJ257 engine with cooler, higher-volume air for improved horsepower, torque, and throttle response.
Dyno-proven testing shows increases of up to 19 horsepower and 21 lb-ft of torque, along with 56% more airflow compared to the factory intake. The sealed design integrates a Dynamic Air Scoop to pull cold air from the front of the vehicle and an additional opening from the fender well, ensuring maximum airflow density.
The large Pro 5R oiled filter features five layers of progressively finer cotton media for maximum flow and power — ideal for street and track use. The clear sight window allows for quick filter inspection without disassembly, and aFe’s patent-pending filter-to-housing interface minimizes hardware and simplifies installation.
This intake installs in approximately 30 minutes using standard tools and includes high-quality clamps and silicone couplers. Designed for enthusiasts who want high performance with OEM-like fitment and long-term serviceability.
Key Features and Benefits
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Fits 2018–2021 Subaru WRX STI (H4-2.5L Turbo)
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Dyno-proven gains up to 19 HP and 21 lb-ft torque
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Outflows factory intake by 56%
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Measured flow: 320 CFM @ 7” H₂O
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Sealed one-piece XLPE housing for maximum cool-air retention
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Includes Dynamic Air Scoop + fender well inlet for increased airflow
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Large 7.5” tall 360° Pro 5R oiled air filter
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Five-layer cotton gauze media for maximum performance
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Clear filter inspection window
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Dyno-tuned XLPE intake tube for optimized airflow
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Fast, simple installation (approx. 30 minutes)
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Stainless steel clamps and silicone couplers included
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Washable and reusable air filter
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Ideal for street and track use
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Not CARB exempt
Technical Specs / Material Info
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Filter Type: Pro 5R (oiled, reusable, 5-layer cotton)
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Filter Height: 7.5 inches
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Housing: Cross-linked polyethylene (XLPE)
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Intake Tube: Dyno-tuned XLPE
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Emissions: Not CARB legal
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Install Time: ~30 minutes
Package Contents
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Takeda Momentum Intake Housing
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Dyno-tuned XLPE Intake Tube
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Pro 5R Oiled Air Filter
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Dynamic Front Air Scoop
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Silicone Couplers and Clamps
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Hardware
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aFe Warranty
Installation Info
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Bolt-on installation using common tools
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Minimal hardware needed
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No cutting or modifications required
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Designed for perfect factory fitment
Special Notes / Emissions Info
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Not CARB exempt
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Not legal for sale or use in California
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Fits 2018–2021 Subaru WRX STI (EJ257 engine)
