Cobb Top Mount Intercooler Black Subaru WRX 2015-2021 | B42405-BK

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SKU: cobbB42405-BK
Availability: 20 In Stock
Type: Intercoolers Top Mount
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Fitment Information:

2015-2021 Subaru WRX

Upgrading the intercooler on your 2015 and newer WRX can help to both increase airflow and reduce charge air temperatures, leading to more power! Where a front-mounted intercooler may shine with overall cooling capacity, it comes at the price of transient response. The COBB Top Mount Intercooler is perfect for applications where additional airflow and cooling is desired without the need to support a large upgraded turbocharger.


  • Thrust Tunnel Maximizes Airflow from Hood Duct
  • Increase Airflow and Cooling Capacity
  • 31% Airflow increase over the stock intercooler
  • Black Powder Coat Finish Core
  • Cast Aluminum End Tanks
  • Compatible with Stock or COBB LF BPV
  • Measurements: 15.75" x 9.76" x 3.94"
  • Retains Clearance for Aftermarket Radiators
  • Installation Requires COBB Charge Pipe Kit
  • Intermediate Installation Effort
  • Installation Guide

The COBB Top Mount Intercooler for the 2015-2018 Subaru WRX offers a significant increase in overall airflow as well as more efficient cooling than other top mount intercoolers currently available.

To handle the added weight of the COBB intercooler core, a heavy-duty replacement mounting bracket is used on the passenger side. An included bushing isolates vibrations from the engine block. Reinforced black silicone couplers are included to complete the installation, maximizing the flow path from turbocharger to throttle body. The included COBB Thrust Tunnel is constructed of wrinkle black powder coated aluminum and attaches to the factory hood ducting to maximize airflow through the core.


WARNING: Cancer and Reproductive Harm. (

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