CSF 2023+ Honda Civic FL5 Type R / 2024+ Acura Integra DE5 Type S All-Aluminum Radiator

If you're pushing your FL5 Civic Type R or DE5 Integra Type S hard, whether on the track or just enjoying spirited drives, keeping engine coolant temperatures in check is crucial. The factory radiator, while decent for daily driving, can struggle when temperatures rise, especially with modifications like larger intercoolers that can restrict airflow. This CSF all-aluminum radiator is built to handle those demanding conditions, offering a significant upgrade over the stock plastic-tank, single-row design.

CSF has a deep history with Honda cooling systems, even supplying radiators for Honda Performance Development (HPD) race cars. They've taken that racing experience and applied it to this high-performance radiator. It features a 2-row, 42mm core with CSF's advanced 5mm fin technology, which increases the heat exchange surface area by up to 25% compared to other designs. This, combined with their exclusive B-Tube technology that boosts heat transfer by about 15%, means the radiator can dissipate heat much more effectively. In testing, it showed an 8-degree Celsius drop in engine coolant temperatures compared to the OEM unit, even with an upgraded intercooler that typically raises temps by 7%.

Built with 100% TIG-welded aluminum construction, this radiator is not only strong and durable for hard driving but also a direct, bolt-in replacement. The mounting brackets and inlet/outlet connections are CNC machined to match the factory locations, so installation is straightforward with no cutting or modifications needed. This CSF radiator is a solid choice for anyone looking to improve their Type R or Type S's cooling system for better performance and longevity.