CSF High-Performance All-Aluminum Radiator for Subaru WRX/STI

If you’re looking to keep your 2008-2021 Subaru WRX or 2008-2014 Subaru STI running cool under pressure, the CSF 7094B High-Performance All-Aluminum Radiator is your go-to upgrade. With over five decades of expertise in radiator manufacturing, CSF delivers a product designed for the street and the track, ensuring your engine stays at optimal temperatures, whether you’re cruising or racing.

Innovative Cooling Technology

The 7094B model features CSF's exclusive B-Tube Technology, which sets it apart from standard radiators. Unlike traditional oval "O" shaped tubes, the specially engineered "B-tubes" provide a stronger structure while allowing for thinner, lighter aluminum. This design increases the heat transfer surface area by approximately 15%, effectively improving cooling efficiency. The result? You get dual liquid laminar flow for superior cooling performance, making it ideal for both high horsepower builds and competitive motorsport applications.

Precision Engineering

CSF doesn’t cut corners. The radiator includes ultra-efficient, multi-louvered fins that are meticulously aligned to maximize airflow through the core. Each fin is designed for your specific application, tested in wind-tunnel labs to ensure maximum heat rejection efficiency. This ensures that your WRX or STI can handle the heat, whether you're on the road or at the track.

Easy Installation

The CSF 7094B is a true "drop-in fit," meaning you can install it without any modifications. It utilizes OE-style CNC-machined and welded brackets for durability and is designed to match your factory inlet and outlet connections. This allows you to reuse your OEM hoses or aftermarket options with ease.

Technical Specifications

• Core Height: 13.4375 in.
• Core Width: 27.0625 in.
• Core Thickness: 1.25 in.
• Core Row Quantity: 1
• Inlet Diameter: 1.5625 in. (Top Center)
• Outlet Diameter: 1.5625 in. (Bottom Right)
• Material: 100% All-Aluminum TIG-Welded Construction
• Finish/Color: Black
• For Manual Transmission Only

Fitment

The CSF 7094B is compatible with the following Subaru models:

• Subaru Crosstrek 2016-2017
• Subaru Forester 2009-2013
• Subaru Impreza 2008-2021
• Subaru Legacy 2005-2009
• Subaru Outback 2005-2010
• Subaru STI 2008-2014
• Subaru WRX 2008-2021
• Subaru XV Crosstrek 2013-2015

Why Choose CSF?

When it comes to cooling performance, CSF stands out as the industry leader, utilizing innovative tube and fin technologies combined with rigorous testing methods. With the CSF 7094B, you’re not just getting a radiator; you’re investing in reliable performance and peace of mind.