Perrin Post MAF Hose Black 2002-2007 WRX / 2004-2007 STI | Smooth Silicone Upgrade | Intake Replacement Hose
Overview
The Perrin Post MAF Hose is a direct replacement intake hose designed specifically for the 2002-2007 Subaru WRX and 2004-2007 WRX STI models. This premium silicone hose replaces the factory corrugated rubber hose, which is prone to cracking and leaks over time, especially on higher-mileage turbocharged Subarus. By upgrading to a smooth, larger diameter silicone tube, this hose improves airflow efficiency, reduces turbo spool time, and helps maintain consistent engine performance.
Engineered with durability and performance in mind, the Perrin Post MAF Hose features a smooth interior surface that eliminates the restrictive pleats found in the OEM hose. This design reduces turbulence and airflow resistance, allowing your turbocharged engine to breathe more freely. Perrin Performance is known for its high-quality, precision-engineered Subaru parts, and this hose exemplifies their commitment to enhancing reliability and power delivery for Subaru enthusiasts.
For WRX and STI owners, this hose offers tangible benefits including improved throttle response and sustained boost efficiency. It is an ideal upgrade for those maintaining older turbo Subarus or anyone looking to optimize their intake system for better performance and reliability. The precise fitment ensures an easy installation process and long-lasting service life, making it a practical and effective enhancement for your Subaru’s turbocharged setup.
Features & Specifications
This Perrin Performance Post MAF Hose is engineered for 2002-2007 Subaru WRX and 2004-2007 WRX STI models and features a smooth, larger diameter silicone construction. Crafted from high-quality silicone, it delivers improved airflow and durability for Subaru enthusiasts seeking enhanced turbo response and intake reliability.
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Brand: Perrin Performance
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Product: Perrin Post MAF Hose Black 2002-2007 WRX / 2004-2007 STI
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Part Number: PSP-INT-350BK
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Fitment: 2002-2007 Subaru WRX, 2004-2007 Subaru WRX STI
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Material: Silicone
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Finish: Black
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Construction: Molded smooth bore silicone tube
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Origin: Made in USA
Key Benefits
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Performance: Smooth interior reduces airflow restriction, improving turbo spool and throttle response.
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Durability: High-quality silicone resists cracking and leaks common in OEM rubber hoses, extending service life.
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Fitment: Precision engineered for a direct, secure fit on 2002-2007 WRX and 2004-2007 WRX STI models.
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Reliability: Maintains consistent airflow under boost, supporting stable engine performance.
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Maintenance: Ideal replacement for aging or damaged factory hoses to prevent boost leaks and performance loss.
What's Included
- 1× Perrin Post MAF Hose Black 2002-2007 WRX / 2004-2007 STI
- 2× Hose clamps
- Installation instructions
Installation & Compatibility
Installation of the Perrin Post MAF Hose is straightforward and suitable for enthusiasts with basic mechanical skills. The hose is a direct bolt-on replacement requiring no modifications or special tools beyond standard hand tools. It is recommended to inspect and replace any worn clamps or seals during installation to ensure a proper seal. While no tuning is required, verifying fitment for your specific year and trim is important to ensure compatibility.
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Professional Installation: DIY-Friendly
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level
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