Perrin Front Mount Intercooler Core Large Size Silver 2015-2025 WRX / 2015-2021 STI | 28" x 13.25" x 3.5" | High-Flow Bar and Plate Intercooler Core

Overview

The Perrin Front Mount Intercooler Core is a high-performance upgrade designed specifically for the 2015-2025 Subaru WRX and 2015-2021 Subaru WRX STI. This large-size intercooler core replaces the factory unit to deliver superior cooling efficiency and reduced pressure drop, essential for maintaining consistent boost pressure and optimal charge air temperatures. It is ideal for Subaru enthusiasts looking to increase power output and reliability without compromising daily drivability.

Engineered with a robust 3/8” bar and plate construction, this intercooler core offers enhanced durability compared to traditional tube and fin designs. Perrin’s design philosophy focuses on maximizing airflow by fully utilizing the entire bumper opening, placing the core directly in the path of incoming air. The end tanks are carefully shaped with smooth, gradual tapers to eliminate turbulence and promote even air distribution across the core, ensuring efficient heat dissipation and minimal boost loss.

Real-world benefits include a proven gain of 10 to 20+ wheel horsepower across various power levels, achieved without the need for immediate ECU tuning. The improved charge air cooling reduces intake air temperatures, which helps prevent heat soak during spirited driving or track use. This intercooler core is pressure tested to 50 psi to guarantee leak-free performance, making it a reliable upgrade for Subaru owners seeking consistent power delivery and enhanced turbo response.

Features & Specifications

This Perrin Front Mount Intercooler Core is engineered for the 2015-2025 Subaru WRX and 2015-2021 WRX STI, featuring a large 28” x 13.25” x 3.5” bar and plate core. Constructed from high-quality aluminum, it delivers superior cooling capacity and durability for Subaru enthusiasts seeking reliable power gains and efficient charge air cooling.

• Brand: Perrin Performance
• Product: Front Mount Intercooler Core Large Size Silver
• Part Number: PSP-ITR-406SL
• Fitment: 2015-2021 Subaru WRX STI, 2015-2025 Subaru WRX
• Material: Aluminum
• Finish: Silver powder coat
• Construction: 3/8” Bar and Plate
• Origin: Made in USA
• Core Dimensions: 28" (L) x 13.25" (H) x 3.5" (D)
• Core Volume: 1298.5 cubic inches
• Pressure Tested: 50 psi leak test
• Power Gains: +10 to 20+ Wheel HP
• Tuning Required: No tuning required for stock ECU, recommended for additional power

Key Benefits

• Performance: Significant horsepower gains through improved charge air cooling and reduced pressure drop
• Durability: Robust 3/8” bar and plate design resists damage from debris and rocks
• Fitment: Precisely sized to maximize the entire bumper opening for optimal airflow
• Quality: Pressure tested to 50 psi to ensure no boost leaks and consistent performance
• Ease of Use: No ECU recalibration required for stock power levels, allowing straightforward installation
• Aesthetics: Clean silver finish with included Perrin stencil for custom branding

What's Included

• 1× Perrin Front Mount Intercooler Core Large Size Silver
• 1× Perrin logo stencil for custom paint application
• Installation instructions

Installation & Compatibility

Installation of the Perrin Front Mount Intercooler Core is moderately challenging and generally recommended for those with experience in Subaru modifications or professional installation. It requires removal of the factory intercooler and some bumper components to fit the larger core properly. No special tools beyond standard hand tools are typically needed. This intercooler core is designed to bolt directly into place without modifications, maintaining OEM mounting points and hardware compatibility. While no ECU tuning is required for stock power levels, tuning is recommended to maximize gains if additional supporting modifications are installed.

• Professional Installation: Recommended for best results
• Modifications Required: None beyond factory bolt-on fitment
• Verify Compatibility: Confirm fitment for your specific year and trim level within 2015-2025 WRX and 2015-2021 WRX STI

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