• COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
  • COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)
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COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)

COBB Top Mount Intercooler Silver | Subaru WRX (15-21) (B42405-SL)

B42405-SL

In stock

$985.00 USD
$985.00 USD $985.00 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The COBB Top Mount Intercooler Silver is a high-performance upgrade designed specifically for the 2015–2021 Subaru WRX. This top mount intercooler enhances airflow and significantly reduces charge air temperatures, which contributes to increased engine power and efficiency. Featuring cast aluminum end tanks and a premium Garrett core, it delivers superior cooling performance compared to the factory intercooler. The core measures 15.75 inches by 9.65 inches by 3.9 inches, making it the largest available for the direct-injection turbocharged WRX. Its robust construction ensures durability and consistent performance under demanding conditions, making it an ideal choice for enthusiasts seeking reliable power gains without the need for a larger turbocharger.

This intercooler is designed as a direct replacement for the Subaru WRX models from 2015 through 2021 equipped with the VA chassis and direct-injection turbo engine. Installation is straightforward, fitting into the factory mounting points without modification. It is well-suited for street and light track use where improved cooling and airflow are desired without extensive supporting modifications. The COBB Top Mount Intercooler provides a bolt-on solution for drivers looking to optimize their vehicle’s thermal management and maintain strong performance during spirited driving or mild tuning upgrades.

Overview

COBB Top Mount Intercooler Silver 2015-2021 WRX

Fitment: 2015-2021 Subaru WRX

Part #: B42405-SL

Overview

The COBB Top Mount Intercooler is a high-performance upgrade designed specifically for the 2015-2021 Subaru WRX. This intercooler is engineered to improve airflow and reduce charge air temperatures, which can support enhanced engine efficiency and power delivery. Ideal for WRX owners seeking better cooling performance without the need for a larger turbocharger, this intercooler balances increased cooling capacity with a compact design.

Featuring cast aluminum end tanks and a premium Garrett core, the COBB intercooler offers superior durability and thermal management. Its large core size maximizes charge air cooling, helping to maintain consistent performance during spirited driving or track use.

Key Features

This intercooler upgrade provides several important benefits:

  • Cast aluminum end tanks for strength and heat dissipation
  • High-quality Garrett core designed for efficient charge air cooling
  • Largest core dimensions available for the DIT WRX: 15.75" x 9.65" x 3.9"
  • Optimized airflow to reduce charge air temperatures and support power gains
  • Direct bolt-on fitment for 2015-2021 Subaru WRX models
  • Silver finish complements engine bay aesthetics

Construction & Design

The intercooler’s construction features robust cast aluminum end tanks that channel air efficiently through the Garrett core. This design ensures durability under high boost conditions while maximizing thermal transfer to reduce intake temperatures. The large core size is tailored to the WRX’s direct injection turbocharged engine, providing a balance of cooling performance and packaging efficiency.

Installation & Fitment

Designed as a direct replacement for the factory top mount intercooler, installation is straightforward with no major modifications required. Fitment is specific to 2015-2021 Subaru WRX models, but it is recommended to verify compatibility with your vehicle’s exact specifications before purchase.

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