Perrin Performance Boost Tube Kit

Universal Fitment

Part #: PSP-ITR-438-2BK/BK

Overview

The Perrin Performance Boost Tube Kit is a high-quality upgrade designed for Subaru STI models from 2015 to 2019. This kit replaces the factory top mount intercooler’s hot side piping with a durable, smooth-bore boost tube that enhances airflow efficiency and supports increased turbocharged performance. Crafted for enthusiasts seeking improved response, a cleaner engine bay appearance, and reliable airflow management, this kit is ideal for those looking to optimize their vehicle’s turbo system. The boost tubes are engineered to withstand high temperatures and pressures, ensuring long-lasting durability and consistent performance under demanding driving conditions. Whether you’re upgrading for increased power, improved throttle response, or a more aggressive look, this kit helps your turbocharged Subaru STI achieve its full potential. The precise routing and larger diameter tubing promote smoother airflow, reducing turbulence and pressure drop, which can contribute to better overall engine response and efficiency. Designed for ease of installation, it provides a direct fit that integrates seamlessly with your existing intercooler system, making it a practical upgrade for both daily drivers and performance enthusiasts.

Key Features

This Perrin Boost Tube Kit combines functional design with durable materials to support your vehicle’s performance goals. Key features include:

• Constructed from high-quality, heat-resistant silicone and aluminum components
• 2.25-inch diameter tubing for optimal airflow and minimal obstruction
• Offset coupler for smooth routing from the turbocharger to the intercooler
• Enhanced heat resistance to withstand high-temperature conditions
• Precision-matched components for a secure, leak-free fit
• Supports increased horsepower and improved throttle response
• Designed for straightforward installation with minimal modifications

Construction & Design

The boost tubes are crafted from durable, high-grade silicone with reinforced walls to resist heat and pressure. The aluminum couplers are machined for a precise fit, ensuring durability and a secure seal. The smooth, offset routing minimizes airflow turbulence, promoting more efficient charge delivery to the engine.

Driving Feel & Feedback

Installing this boost tube kit can lead to a noticeable improvement in throttle response and turbo spool characteristics. The smoother airflow path helps your vehicle deliver power more predictably, enhancing driving engagement and confidence during spirited driving or daily commuting.

Installation & Fitment

Designed for direct bolt-on installation, this kit requires basic tools and minimal modifications. Fitment should be verified against your specific vehicle model and part number to ensure compatibility.

What’s Included

The package includes all necessary silicone hoses, aluminum couplers, and clamps required for a complete installation, ensuring a seamless upgrade process.