CSFs new radiator comes complete with CSFs industry-leading and exclusive B Tube Technologythat increases the heat dissipation by approximately 15% over regular tubes as well as multi-louvered fins to maximize airflow through the radiator core. 100% TIG welded construction ensures a higher level of reliability and durability compared to the OEM plastic tanks, which may become brittle or susceptible to cracking over 5+ years of use, especially when driven in extreme driving conditions. Although the CSF unit has over 50% more capacity than the OEM unit (42mm 2-row B-Tube core versus 27mm 1-row core), it is still a drop-in fit, requiring no modifications to install. A true plug-and-play upgrade and replacement solution. Topped off with CSFs signature 1-hour mirror polish to make it pop! The Toyota FJ Cruiser radiator by CSF is the best you can get.