CSF All-Aluminum Radiator for 08-14 Subaru WRX & STI with Built-in Oil Cooler

CSF High-Performance All-Aluminum Radiator for 2008-2021 Subaru WRX & STI

When it comes to keeping your Subaru WRX or STI running cool under pressure, the CSF 7042O High-Performance All-Aluminum Radiator is a game-changer. With over 50 years of expertise, CSF knows how to deliver a radiator that performs both on the street and the track. This isn't just an upgrade; it's an essential component for any enthusiast looking to maximize their engine's cooling efficiency, especially for high horsepower builds or dedicated race vehicles.

Why Choose CSF's 7042O Radiator?

This radiator features a robust 2-Row 42mm Core utilizing CSF's exclusive B-Tube Technology. Unlike traditional oval "O" type tubes, the B-tubes are engineered for enhanced performance. This design allows for:

• Increased heat transfer surface area by approximately 15%, which means better cooling efficiency.
• Stronger construction using thinner, lighter aluminum, making it both durable and efficient.
• Dual liquid laminar flow for optimized cooling.

Performance Features

Engineered with precision, the CSF radiator also boasts ultra-efficient multi-louvered fins that are meticulously aligned to maximize airflow through the core. Each fin is designed and tested in CSF's wind-tunnel lab to ensure maximum heat rejection efficiency, giving you peace of mind whether you're cruising or racing.

Fitment and Installation

The CSF 7042O is a true drop-in fit for your 2008-2021 Subaru WRX and STI, meaning no modifications are required for installation. The OE-style brackets are CNC machined and welded to ensure durability, while the inlet and outlet connections are designed to match your factory setup, allowing you to reuse your OEM hoses or aftermarket options.

Technical Specifications

• Inlet Diameter: 1.5625 in.
• Inlet Location: Top Center
• Outlet Diameter: 1.5625 in.
• Outlet Location: Bottom Left
• Core Height: 13.375 in.
• Core Width: 27 in.
• Core Thickness: 1.625 in.
• Core Material: Aluminum
• Core Row Quantity: 2
• Finish: Polished
• Internal Engine Oil Cooler: Yes
• Radiator Cap Included: Yes
• Grade Type: Performance

Customer Feedback

Subaru WRX owners have reported significant improvements in cooling performance after installing the CSF 7042O. One owner noted, "After swapping out my stock radiator for the CSF, I noticed my temps drop significantly during spirited drives. Perfect fit with no hassle during installation!"

Products Fitment

This radiator is compatible with the following models:

• Subaru Crosstrek 2016-2017
• Subaru Forester 2009-2013
• Subaru Impreza 2012-2016
• Subaru Legacy 2005-2009
• Subaru Outback 2005-2009
• Subaru STI 2008-2021
• Subaru WRX 2008-2021

Upgrade your WRX or STI with the CSF 7042O radiator and experience the difference in performance and reliability.