Perrin Turbo Inlet Hose w/ Nozzle Red 2022-2024 WRX Version 1 Fitment / 2019-2025 Ascent / 2020-2025 Legacy / 2020-2025 Outback XT | 3.0" Diameter | High-Flow Turbo Inlet Hose
Overview
The Perrin Turbo Inlet Hose is a precision-engineered upgrade designed to optimize airflow into the turbocharger for select Subaru models including the 2022-2024 WRX Version 1, 2019-2025 Ascent, 2020-2025 Legacy XT, and 2020-2025 Outback XT. This hose replaces the restrictive factory inlet, eliminating a significant leak point and increasing the internal diameter from 2.6" to 3.0". The result is a smoother, less turbulent path for air to enter the turbo, improving efficiency and power delivery without requiring immediate ECU tuning.
Built with a focus on durability and performance, the Perrin inlet hose features a smooth internal surface and gradual bends that reduce airflow disruption common in OEM parts. Reinforced with an embedded stainless steel support wire, it maintains rigidity under high boost and prevents hose collapse, even when paired with restrictive aftermarket filters or high horsepower setups. This combination of design and material quality makes it a standout choice for Subaru enthusiasts seeking reliable power gains and improved turbo response.
In real-world driving, this turbo inlet hose translates to an increase of 10-15 wheel horsepower at higher RPMs and 5-10 ft-lbs of torque in the midrange. By reducing the turbo’s workload to reach boost targets, it enhances throttle response and acceleration. While no tuning is required to realize these gains, custom ECU calibration can unlock even greater potential. This part is an ideal upgrade for Subaru owners looking to maximize the efficiency of their turbo system while maintaining OEM-level reliability and fitment.
Features & Specifications
This Perrin Turbo Inlet Hose is engineered for Subaru WRX Version 1 (2022-2024), Ascent, Legacy XT, and Outback XT models. Featuring a 3.0" internal diameter and smooth silicone construction reinforced with stainless steel wire, it delivers improved airflow and durability for enthusiasts seeking enhanced turbo efficiency and power gains.
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Brand: Perrin Performance
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Product: Turbo Inlet Hose w/ Nozzle Red
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Part Number: PSP-INT-425RD
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Fitment: 2022-2024 WRX Version 1, 2019-2025 Ascent, 2020-2025 Legacy XT, 2020-2025 Outback XT
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Material: Reinforced Silicone with Stainless Steel Support Wire
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Finish: Red Silicone
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Construction: Molded with Embedded Reinforcement
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Origin: Made in USA
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Internal Diameter: 3.0 inches
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Power Gains: +10-15 Wheel Horsepower
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Torque Gains: +5-10 ft-lbs
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Tuning Required: No (Recommended for maximum gains)
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Compatibility Notes: Compatible with OEM, Perrin, and select aftermarket intakes; trimming required for AMS, Cobb, and ETS Version 1 intakes
Key Benefits
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Performance: Increases horsepower and torque by improving turbo airflow efficiency
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Durability: Stainless steel support wire prevents hose collapse under high boost conditions
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Fitment: Designed specifically for Subaru WRX Version 1 and other XT models ensuring OEM-level fit and finish
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Efficiency: Smooth interior and gradual bends reduce airflow turbulence for better turbo response
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Ease of Use: No immediate ECU tuning required to gain power, making it a straightforward upgrade
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Compatibility: Supports all bolt-on modifications and increased boost levels without restriction
What's Included
- 1× Perrin Turbo Inlet Hose w/ Nozzle Red
- Installation instructions
Installation & Compatibility
Installation is generally straightforward for experienced enthusiasts comfortable with basic engine bay work. The hose is a direct replacement for the factory turbo inlet but may require trimming when used with certain aftermarket intakes such as AMS, Cobb, and ETS Version 1 due to differing coupler angles. No special tools are required beyond standard hand tools. While the part delivers power gains without tuning, custom ECU calibration is recommended to fully optimize performance and ensure safe operation with other modifications.
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Professional Installation: Recommended for those unfamiliar with turbo system components
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Modifications Required: Minor trimming for some aftermarket intake compatibility
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Verify Compatibility: Confirm fitment for your specific model year and intake setup
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