Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)-COBB-COBBB42405-BK
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Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)

COBB
COBBB42405-BK
700424678655
Intercooler Kits
9 Units In Stock - Ships Next Business Day
$ 985.00
$ 985.00

SKU: BB42405-BK   |   UPC: 700424678655

Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)

The Cobb Top Mount Intercooler in black replaces the factory unit on 2015-2021 Subaru WRX models, delivering denser charge air for sustained power output. Its advanced core design handles high boost pressures while maintaining low intake air temperatures during extended runs. Pair it with the required Cobb charge pipe for seamless integration and immediate gains in throttle response and consistency.

Key Features

  • Bar-and-Plate Core: 42% larger volume and 108% more fin surface area than stock reduces intake temps by up to 25°F under load for steady performance.
  • Cast Aluminum End Tanks: Precision-machined for smooth airflow, minimizing turbulence and pressure drop even at 30+ psi boost.
  • Black Powdercoat Finish: Durable corrosion-resistant coating enhances engine bay aesthetics and withstands extreme underhood conditions.
  • Direct Bolt-On Design: Matches OEM mounting points for easy swap without fabrication on VA-chassis WRX.
  • High-Capacity Flow: Supports 500+ wheel horsepower while preventing heat soak in street or track use.

Product Notes

  • Requires Cobb charge pipe (part 754700) for proper fitment and function.
  • Clean installation site before mounting to ensure secure seal.
  • Ships fully assembled and ready for install; ground shipping only due to size.

Installation Notes

  • Professional installation recommended.
  • Remove stock intercooler and charge pipe; install Cobb charge pipe first.
  • Uses factory hardware; torque to spec (15 ft-lbs) for end tank bolts.

This Part Fits

Year Make Model Submodel
2015-2021 Subaru WRX Base
2015-2021 Subaru WRX Limited
2015-2021 Subaru WRX Premium

Why Choose Cobb?

  • Proven leader in Subaru performance with dyno-validated components.
  • U.S.-made quality supports daily drivers and race builds.
  • Engineered for real-world boost levels with flow bench testing.

Frequently Asked Questions

  • Q: Will this fit my 2019 Subaru WRX Premium?
    A: Yes, direct fit for all 2015-2021 WRX trims including Base, Premium, and Limited on VA chassis.
  • Q: What materials are used in construction?
    A: Full aluminum bar-and-plate core with cast end tanks and TIG-welded assembly, finished in black powdercoat.
  • Q: What is the warranty and install time?
    A: Cobb offers a limited lifetime warranty; install takes 1-2 hours with basic tools and required charge pipe.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam-protected box, 28" x 18" x 12"
  • Weight: 19 lbs (shipping weight 25 lbs)

Request For Information

Have questions about Cobb 15-18 Subaru WRX Top Mount Intercooler - Black (Requires COBB Charge Pipe)? Fill out the form below and we'll get back to you by the next business day.
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