CSF 13-20 FR-S / BRZ / 86 / 22+ GR86 / BRZ High-Performance All-Aluminum Radiator

With over five decades of expertise in radiator manufacturing, CSF stands as a benchmark for quality and reliability in automotive cooling solutions. The CSF 13-20 FR-S / BRZ / 86 / 22+ GR86 / BRZ High-Performance All-Aluminum Radiator exemplifies this legacy, engineered to maintain optimal engine temperatures for your vehicle, whether on the street or the racetrack. This radiator is meticulously designed to meet the rigorous demands of high horsepower applications and motorsport environments, where enhanced cooling efficiency is critical for performance and durability.

At the core of this radiator is CSF’s innovative 2-Row core featuring exclusive B-Tube Technology. Unlike conventional oval-shaped “O” tubes, the B-Tube design is a specially engineered structure shaped like the letter “B.” These tubes are precision-formed and seam-brazed to ensure a robust seal, allowing the use of thinner, lighter aluminum material without compromising strength. This advanced design increases the heat transfer surface area by approximately 15% compared to traditional tubes, effectively delivering the cooling efficiency of two smaller tubes within the same spatial constraints. The result is a superior dual liquid laminar flow that maximizes heat dissipation.

Complementing the B-Tube technology, the radiator incorporates ultra-efficient multi-louvered fins with a 6.5mm fin height. These fins are carefully aligned to optimize airflow through the core, enhancing heat rejection capabilities. Each fin specification is precisely calculated and validated through rigorous wind-tunnel testing to ensure maximum thermal performance under demanding conditions.

The CSF radiator is engineered as a true “drop-in fit” component, requiring no modifications for installation. All brackets are CNC machined and welded to exacting standards, ensuring exceptional durability and a perfect fit. The inlet and outlet connections are designed to mirror OEM specifications, enabling seamless integration with original or aftermarket hoses. This design philosophy guarantees compatibility with all factory components, including quick-connect hoses, AC condensers, mounting brackets, and fan shrouds.

Features

• 2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology for Enhanced Cooling Efficiency
• Ultra-Efficient Multi-Louvered Fin Design with 6.5mm Fin Height to Maximize Surface Area Contact and Airflow
• CNC Machined “Quick-Connect” Inlet and Outlet Connections for Precise Fitment and Reliability
• CNC Machined Brackets and Fittings Engineered for Superior Durability and Accurate Installation
• All-Aluminum Race Style Drain Plug for Robustness and Ease of Maintenance
• Smooth Satin Finish Providing Corrosion Resistance and Professional Aesthetic
• True “Drop-in Fit” Design Requiring No Modifications, Compatible with OEM Components Including Quick Connect Hoses, AC Condenser, Mounting Brackets, and Fan Shroud

Applications

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.