CSF 04-08 Mazda RX-8 High-Performance All-Aluminum Radiator

With over five decades of expertise in radiator manufacturing, CSF stands as a trusted leader in automotive cooling solutions. The CSF 04-08 Mazda RX-8 High-Performance All-Aluminum Radiator exemplifies this legacy, offering a premium cooling system engineered to maintain optimal engine temperatures and enhance vehicle performance. Whether for spirited street driving or demanding track conditions, this radiator is meticulously designed to meet the rigorous demands of high horsepower builds and motorsport applications, ensuring reliable heat dissipation and engine protection.

At the core of this radiator is CSF’s proprietary 2-Row core featuring exclusive B-Tube Technology. Unlike conventional oval-shaped "O" tubes, the B-Tube design employs a uniquely engineered "B" shaped tube that is seam brazed for superior strength and durability. This innovative construction allows the use of thinner, lighter aluminum material while simultaneously improving cooling efficiency. The B-Tube’s central inlet and brazed seam increase the heat transfer surface area by approximately 15%, effectively delivering the cooling performance of two smaller tubes within the same spatial constraints. This dual liquid laminar flow enhances thermal exchange, making it significantly more effective than standard tube designs.

Complementing the advanced tubing, the radiator incorporates ultra-efficient multi-louvered fins with a precise 6.5mm fin height. These fins are meticulously aligned to maximize airflow through the core, optimizing heat rejection. Each fin configuration is carefully engineered and validated through rigorous testing in CSF’s wind-tunnel laboratory, ensuring peak thermal performance tailored specifically for the Mazda RX-8 application.

Installation is straightforward and convenient with the CSF RX-8 radiator’s true "Drop-in fit" design. It requires no modifications, preserving the integrity of the vehicle’s original assembly. All brackets are CNC machined and welded to guarantee exceptional durability and perfect alignment. The inlet and outlet connections are designed to match OEM specifications, allowing seamless integration with existing hoses and aftermarket components. This compatibility extends to all factory attachments including quick connect hoses, AC condenser, mounting brackets, and fan shroud, providing a hassle-free upgrade experience.

Features

• 2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology
• Core Features an Ultra-Efficient Fin with 6.5mm Fin Height and Multi-Louvered Design for Maximum Surface Area Contact
• CNC Machined "Quick-Connect" Inlet/Outlet Connections
• CNC Machined Brackets and Fittings for Superb Fit and Durability
• All-Aluminum Race Style Drain Plug
• 1-Hour "Mirror Finish" Hand Polish
• "Drop-in Fit" Requiring No Modifications to Install - Accepts All Attaching OEM Components Including "Quick Connect" Hoses, AC Condenser, Mounting Brackets and Fan Shroud

The radiator’s all-aluminum construction not only reduces weight compared to traditional copper/brass units but also enhances corrosion resistance and longevity, critical factors for sustained performance and reliability. The race-style drain plug facilitates efficient coolant changes, supporting routine maintenance and minimizing downtime.

Applications

OEM Part Numbers

• Mazda: N3H6 15 200D
• Mazda: N3H6-15-200D
• Mazda: N3H615200D

CSF’s commitment to quality is further demonstrated by the meticulous hand-polishing process, which provides a mirror finish to the radiator surface, enhancing both aesthetics and corrosion resistance. This attention to detail underscores CSF’s dedication to delivering products that meet the highest standards of craftsmanship and performance.

Warranty

Cooling Systems and Flexibles, Inc. (CSF) guarantees the performance and durability of its High-Performance Cooling Systems under normal use and service to the original purchaser of the vehicle in which the product was initially installed. For comprehensive warranty details, please visit our Warranty Page.

SKU# 3164 Warranty Term: 2 years

In summary, the CSF 04-08 Mazda RX-8 High-Performance All-Aluminum Radiator is a precision-engineered cooling solution that combines innovative technology, superior materials, and exacting manufacturing standards. It is designed to provide reliable, efficient cooling performance that meets the demands of both everyday driving and competitive motorsports environments. Trust CSF to deliver a radiator that enhances your RX-8’s performance, reliability, and longevity with a seamless, OEM-compatible fit.

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.

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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.