CSF BMW F2X 1/2-Series / F3X 3/4-Series / i30 (MT) All-Aluminum Radiator

With over five decades of expertise in radiator manufacturing, CSF stands as a benchmark for quality and performance in automotive cooling solutions. The CSF BMW F2X 1/2-Series / F3X 3/4-Series / i30 (MT) All-Aluminum Radiator exemplifies this heritage, offering a reliable and efficient cooling system engineered to maintain optimal engine temperatures under both everyday driving and demanding conditions.

Specifically designed for the F2X and F3X BMW chassis as well as the Hyundai i30 manual transmission models, this radiator integrates advanced engineering principles to ensure superior heat dissipation. Its 2-row core construction incorporates CSF’s exclusive B-Tube Technology, a significant innovation that distinguishes this radiator from conventional designs. Unlike traditional oval-shaped "O" tubes, the B-Tubes feature a unique "B"-shaped profile that is seam brazed for enhanced structural integrity. This design enables the use of thinner, lighter aluminum material without compromising strength, resulting in improved cooling efficiency.

The B-Tube configuration increases the heat transfer surface area by approximately 15% compared to standard tubes, effectively doubling the cooling capacity within the same spatial constraints. This is achieved through dual liquid laminar flow, which optimizes coolant movement and heat exchange. Complementing this technology, the radiator employs ultra-efficient multi-louvered fins with a 6.5mm fin height. These fins are precisely aligned and tested in CSF’s wind-tunnel laboratory to maximize airflow and heat rejection, ensuring consistent engine performance even under high thermal loads.

Installation of the CSF radiator is straightforward due to its true "drop-in fit" design. It requires no modifications, preserving the integrity of the original vehicle setup. The radiator features CNC-machined inlet and outlet connections that match OEM specifications, allowing for seamless integration with existing hoses, whether OEM or aftermarket. Additionally, all mounting brackets and fittings are CNC machined and welded to guarantee durability and perfect alignment, ensuring a secure and long-lasting fitment.

Key Features

• 2-Row 42mm Core (Dual Core) utilizing CSF's proprietary B-Tube Technology for enhanced cooling efficiency
• Ultra-efficient multi-louvered fins with 6.5mm fin height designed to maximize surface area contact and airflow
• CNC-machined "Quick-Connect" inlet and outlet connections for precise fitment and ease of installation
• Robust CNC-machined brackets and fittings engineered for superior durability and exact OEM fit
• All-aluminum race-style drain plug for reliable maintenance and longevity
• Smooth satin finish providing corrosion resistance and a refined appearance
• True "drop-in fit" design compatible with all OEM components including hoses, AC condenser, mounting brackets, and fan shroud
• Direct replacement for OEM part number 17117600520, ensuring compatibility and performance

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.