Perrin Front Mount Intercooler Boost Tube Kit Red 2008-2014 STI | 2.25"-2.75" Diameter | Aluminum Boost Tubes
Overview
The Perrin Front Mount Intercooler Boost Tube Kit is a precision-engineered upgrade designed specifically for the 2008-2014 Subaru WRX STI. This kit replaces the restrictive OEM boost tubes with mandrel-bent aluminum tubing that increases diameter from 2.25 inches at the turbo outlet to 2.75 inches near the throttle body. It is ideal for STI owners aiming to improve intercooler efficiency, reduce pressure drop, and support higher power levels without sacrificing reliability or fitment.
Crafted with smooth mandrel bends and oversized beaded ends, the boost tubes optimize airflow while maintaining secure hose connections at all boost pressures. The powder-coated red finish not only enhances durability but also adds a subtle visual upgrade under the hood. Included in the kit is a new coolant overflow tank and an intercooler support beam, both powder coated to ensure proper clearance and system integrity. Perrin’s commitment to quality materials and thoughtful design makes this kit a standout choice for Subaru enthusiasts focused on performance and reliability.
By improving charge air cooling and reducing pressure loss, this boost tube kit supports power gains of 10 to 20+ wheel horsepower across various tuning stages. Notably, it delivers these gains without requiring ECU recalibration, allowing for a straightforward bolt-on upgrade. For those pursuing further performance, additional gains are achievable with professional tuning tailored to the full vehicle setup. This combination of performance, fitment, and ease of installation makes the Perrin boost tube kit a practical and effective upgrade for WRX STI owners looking to enhance their turbo system’s efficiency.
Features & Specifications
This Perrin Front Mount Intercooler Boost Tube Kit is engineered for 2008-2014 Subaru WRX STI models and features smooth mandrel-bent aluminum tubing with diameters ranging from 2.25” to 2.75”. Constructed from lightweight aluminum, it delivers improved airflow and durability for Subaru enthusiasts seeking enhanced turbo efficiency and power gains.
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Brand: Perrin Performance
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Product: Front Mount Intercooler Boost Tube Kit Red
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Part Number: PSP-ITR-430-3RD
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Fitment: 2008-2010 Subaru WRX STI, 2011-2014 Subaru WRX STI
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Material: Aluminum
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Finish: Powder Coated Red
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Construction: CNC Mandrel Bent Tubing with Beaded Ends
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Origin: USA (Perrin Performance)
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Boost Tube Diameter: 2.25” (Turbo Outlet) to 2.75” (Throttle Body)
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Included Components: Coolant Overflow Tank, Intercooler Support Beam
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Power Gains: +10-20+ Wheel HP
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Tuning Required: No (Recommended for further gains)
Key Benefits
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Performance: Increased airflow reduces pressure drop, supporting significant horsepower gains without ECU recalibration.
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Durability: Lightweight aluminum tubing with powder-coated finish resists corrosion and maintains strength under boost.
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Fitment: Designed specifically for 2008-2014 WRX STI models, ensuring OEM-level clearance and easy installation.
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Reliability: Oversized, beaded tube ends secure hoses firmly to prevent boost leaks at all pressure levels.
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Cooling Efficiency: Includes a new coolant overflow tank to maintain proper coolant system function with upgraded routing.
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Value: Supports power gains immediately with no mandatory tuning, while allowing further optimization with ECU recalibration.
What's Included
- 1× Perrin Front Mount Intercooler Boost Tube Kit (Red)
- 1× Perrin Coolant Overflow Tank (Powder Coated)
- 1× Perrin Intercooler Support Beam (Powder Coated Black)
- All necessary mounting hardware
- Installation instructions
Installation & Compatibility
Installation of the Perrin Boost Tube Kit is moderately straightforward for enthusiasts with basic mechanical skills, utilizing direct bolt-on mounting points and including all necessary hardware. No special tools beyond standard hand tools are typically required. The kit maintains OEM clearance around factory components, minimizing the need for modifications. While no ECU tuning is required to realize power gains, owners seeking maximum performance should consider professional tuning to optimize engine management for all modifications. Always verify fitment for your specific model year and trim before purchase.
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Professional Installation: Recommended for best results
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Modifications Required: None
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Verify Compatibility: Confirm fitment for 2008-2014 Subaru WRX STI models
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