• COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
  • COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)
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COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)

COBB Top Mount Intercooler Silver w/ Charge Pipe Kit | Subaru WRX (15-21) (B42400-SL)

B42400-SL

In stock

$1,205.00 USD
$1,205.00 USD $1,205.00 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The COBB Top Mount Intercooler Silver with Charge Pipe Kit is a high-performance upgrade designed for the 2015 to 2021 Subaru WRX. This intercooler enhances airflow and reduces charge air temperatures to boost engine power and efficiency. Featuring cast aluminum end tanks paired with a premium Garrett core, it offers superior cooling performance. The core size, measuring 15.75 inches by an unspecified dimension, is the largest available for the direct-injection turbocharged WRX, ensuring optimal heat dissipation. This design supports improved throttle response and sustained power delivery without requiring a larger turbocharger, making it an excellent choice for enthusiasts seeking reliable, efficient cooling in a compact package.

This intercooler and charge pipe kit is engineered specifically for the 2015–2021 Subaru WRX models, fitting as a direct replacement for the factory top mount intercooler. It is ideal for street and track applications where enhanced cooling is critical to maintaining performance under demanding conditions. Installation is straightforward, utilizing existing mounting points for a bolt-on upgrade. The kit includes both the intercooler and charge pipe components, ensuring compatibility and ease of integration. This setup is well-suited for daily driving and moderate performance builds, providing a balance of durability and improved thermal management without extensive modifications.

Overview

COBB Top Mount Intercooler Silver w/ Charge Pipe Kit

Fitment: 2015-2021 Subaru WRX

Part #: B42400-SL

Overview

The COBB Top Mount Intercooler with Charge Pipe Kit is designed specifically for 2015 and newer Subaru WRX models. This upgrade enhances your vehicle’s charge air cooling efficiency by increasing airflow and reducing intake temperatures, which supports improved engine performance and responsiveness. Ideal for enthusiasts seeking better thermal management without the need for a larger turbocharger, this intercooler kit balances performance gains with reliable daily driving usability.

Featuring a robust design, the intercooler is perfect for drivers who want to maintain optimal charge air temperatures during spirited driving or mild tuning, helping to preserve engine health and consistency under load.

Key Features

This intercooler kit offers a range of benefits engineered to improve your WRX’s charge air system:

  • Largest core size available for the direct-injection turbo WRX at 15.75" x 7.5", maximizing cooling surface area
  • Cast aluminum end tanks that provide durable and efficient airflow routing
  • High-quality Garrett intercooler core known for excellent thermal conductivity and reliability
  • Includes a matched charge pipe kit designed to optimize airflow and reduce pressure drop
  • Silver finish that combines durability with a clean, performance-oriented aesthetic
  • Engineered to fit directly into the factory top mount location for straightforward installation

Construction & Design

The intercooler core is crafted by Garrett, a leader in turbocharger and cooling technology, ensuring superior heat dissipation and airflow management. The cast aluminum end tanks are precision-engineered to direct charge air efficiently through the core, minimizing turbulence and pressure loss. The integrated charge pipe kit complements the intercooler by providing smooth, mandrel-bent piping that supports consistent airflow and reduces restrictions commonly found in stock setups.

Installation & Fitment

This kit is designed as a direct replacement for the factory top mount intercooler on 2015-2021 Subaru WRX models. Installation requires basic mechanical skills and common hand tools, with no major modifications necessary. Fitment should be verified against your specific vehicle details and part number to ensure compatibility.

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