Perrin Hi-Power Cold Air Intake Wrinkle Black 2018-2021 STI | +Horsepower & Torque | Cold Air Intake System
Overview
The Perrin Hi-Power Cold Air Intake is a precision-engineered upgrade designed specifically for the 2018-2021 Subaru WRX STI. This intake system enhances your engine’s breathing by increasing airflow, improving throttle response, and delivering measurable horsepower and torque gains. It’s ideal for Subaru enthusiasts seeking a reliable, bolt-on performance enhancement that complements the factory setup without requiring ECU tuning.
Built with a CNC mandrel-bent aluminum intake tube, the design focuses on smooth, unrestricted airflow to maximize efficiency. The intake diameter is carefully calibrated for compatibility with the stock MAF sensor, including an airflow straightener that ensures consistent sensor readings and safe power delivery. The wrinkle black powder-coated finish provides durability and a clean, aggressive look under the hood, reflecting Perrin’s commitment to quality and performance.
Beyond power gains, this intake system offers a more aggressive engine sound during acceleration, enhancing the driving experience without compromising reliability. The washable and reusable foam filter element combines excellent dust-holding capacity with minimal airflow restriction, making it a practical choice for daily drivers and weekend warriors alike. This intake is a straightforward upgrade that fits directly into factory mounting points, preserving the Subaru ownership experience with no tuning required.
Features & Specifications
This Perrin Hi-Power Cold Air Intake is engineered for the 2018-2021 Subaru WRX STI and features a CNC mandrel-bent aluminum intake tube with a wrinkle black powder-coated finish. Constructed from high-quality aluminum and open-cell foam filter media, it delivers improved airflow and throttle response for Subaru enthusiasts seeking reliable horsepower gains without ECU recalibration.
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Brand: Perrin Performance
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Product: Hi-Power Cold Air Intake Wrinkle Black 2018-2021 STI
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Part Number: PSP-INT-326BK
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Fitment: 2018-2021 Subaru WRX STI
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Material: CNC Mandrel-Bent Aluminum, Open-Cell Foam Filter
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Finish: Wrinkle Black Powder Coat
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Construction: CNC Machined, Mandrel Bent Tube
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Origin: USA Made
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Power Gains: Dyno-Proven Horsepower and Torque Increase
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Tuning Required: No
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MAF Compatibility: Calibrated Intake Diameter with Airflow Straightener
Key Benefits
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Performance: Noticeable horsepower and torque gains across the RPM range improve acceleration and throttle response.
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Fitment: Direct bolt-on design fits factory mounting points with no modifications required, preserving OEM reliability.
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Durability: Wrinkle black powder-coated finish resists corrosion and maintains a clean under-hood appearance.
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Maintenance: Washable and reusable foam filter element offers long service life and excellent dust filtration.
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Sound: Enhanced engine tone under acceleration adds an engaging auditory experience without excessive drone.
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Compatibility: Precisely sized intake tube and airflow straightener ensure consistent MAF sensor readings and safe operation without ECU tuning.
What's Included
- 1× Perrin Hi-Power Cold Air Intake Wrinkle Black (PSP-INT-326BK)
- 1× High-Flow Washable Foam Air Filter Element
- Installation Instructions for Intake and Filter
- All Necessary Mounting Hardware
Installation & Compatibility
The Perrin Hi-Power Cold Air Intake is designed for straightforward installation using factory mounting points, making it a DIY-friendly upgrade for enthusiasts with basic mechanical skills. No special tools beyond standard hand tools are required. Because the intake is calibrated for the stock MAF sensor and includes an airflow straightener, no ECU tuning or recalibration is necessary, simplifying the upgrade process. Always verify fitment for your specific 2018-2021 Subaru WRX STI model and trim before installation.
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Professional Installation: Recommended for those unfamiliar with intake systems but generally DIY-friendly
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level of 2018-2021 Subaru WRX STI
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