{"product_id":"perrin-performance-front-mount-intercooler-boost-tubes-red-w-black-silicone-couplers-2018-2020-sti","title":"Perrin Front Mount Intercooler Boost Tubes Red w\/ Black Silicone Couplers 2018-2021 STI","description":"Perrin Performance Front Mount Intercooler Boost Tubes Red w\/ Black Silicone Couplers 2015-2021 STI | 2.25\" Aluminum Tubing | Boost Tubes Overview The Perrin Performance Front Mount Intercooler Boost Tubes are designed specifically for the 2015-2021 Subaru WRX STI, providing a high-quality, efficient pathway for your turbocharged air charge. These boost tubes replace the factory piping with CNC mandrel bent aluminum tubing, optimizing airflow between the turbocharger and intercooler. Ideal for STI owners looking to improve boost response and support higher horsepower levels, these tubes ensure a smooth, obstruction-free route for the intake charge. Engineered with precision, Perrin’s boost tubes feature oversized beaded ends that secure silicone couplers and hose clamps firmly in place, preventing leaks and maintaining boost pressure under demanding conditions. The design philosophy focuses on the shortest and smoothest path for air to travel, using 2.25-inch tubing that balances flow capacity with packaging constraints. This approach minimizes turbulence and pressure drop, which is critical for maintaining consistent boost and maximizing power potential. For Subaru enthusiasts, this setup translates to improved throttle response and more efficient turbo operation, especially when paired with supporting modifications and proper tuning. The routing keeps the cold side tubes high in the engine bay to clear various turbo and intake configurations, ensuring compatibility and ease of installation. Note that the intercooler core is sold separately, allowing you to customize your cooling setup to match your performance goals. Features \u0026amp; Specifications This Perrin Performance boost tube kit is engineered for 2015-2021 Subaru WRX STI models and features 2.25-inch CNC mandrel bent aluminum tubing with black silicone couplers. Constructed from lightweight aluminum, it delivers improved airflow and durability for Subaru enthusiasts seeking enhanced boost efficiency and power support. Brand: Perrin Performance Product: Front Mount Intercooler Boost Tubes Red w\/ Black Silicone Couplers 2018-2021 STI Part Number: PSP-ITR-439-2RD\/BK Fitment: 2015-2021 Subaru WRX STI Material: Aluminum Finish: Red powder coat tubing with black silicone couplers Construction: CNC mandrel bent tubing with oversized beaded ends Origin: Made in USA Tube Diameter: 2.25 inches Design: Smooth, shortest path routing for optimal airflow Core Included: No, intercooler core sold separately Key Benefits Performance: Larger 2.25\" tubing reduces airflow restrictions, supporting higher horsepower and improved boost response. Durability: CNC mandrel bent aluminum tubing resists cracking and deformation under heat and pressure. Fitment: Engine bay routing clears turbo and intake components, ensuring compatibility with various setups. Quality: Oversized beaded ends and high-quality silicone couplers provide secure, leak-free connections. Weight Savings: Aluminum construction reduces weight compared to factory piping, contributing to overall vehicle efficiency. Serviceability: Modular design allows easy removal and inspection of boost tubes during maintenance or upgrades. What's Included 1× Perrin Performance Front Mount Intercooler Boost Tubes (Red Aluminum) Black Silicone Couplers Hose Clamps  Installation \u0026amp; Compatibility Installation of the Perrin Performance boost tubes is moderately straightforward for enthusiasts familiar with Subaru turbo systems. Basic hand tools are sufficient for removal of factory piping and installation of the new tubes. The kit is designed for direct bolt-on fitment with no permanent modifications required. However, professional installation is recommended if you are unfamiliar with turbo plumbing or intercooler setups. Proper tuning is advised to maximize performance gains and ensure safe operation when upgrading boost piping. Professional Installation: Recommended for best results Modifications Required: None Verify Compatibility: Confirm fitment for your specific 2015-2021 Subaru WRX STI model and any supporting modifications Shop with confidence at Subimods—your Subaru parts specialists.","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":46934067740847,"sku":"PSP-ITR-439-2RD\/BK","price":1557.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/3598\/4815\/files\/perrin-front-mount-intercooler-boost-tubes-red-w-black-silicone-couplers-2018-2021-sti-psp-itr-439-2rdbk-5029836.jpg?v=1780002795","url":"https:\/\/subimods.com\/products\/perrin-performance-front-mount-intercooler-boost-tubes-red-w-black-silicone-couplers-2018-2020-sti","provider":"Subimods.com","version":"1.0","type":"link"}