CSF 23+ Honda Civic FL5 Type R, 24+ Acura Integra DE5 Aluminum RadiatorJust like the HPD Race Radiator, the CSF FL5 Civic Type R DE5 Integra Type S Radiator features the latest 5mm fin technology. The smaller fins significantly increase the heat exchange surface area improving overall cooling efficiency. A larger 2 Row 42mm aluminum core increases the fluid capacity of the radiator, and improves the cores ability to dissipate heat. CSF's Exclusive B Tube Technology increases the heat transfer by approximately 15% over