CSF Aluminum Radiator for MK4 VW 2-Row Core with B-Tube Technology

CSF Aluminum Radiator for MK4 VW — 2-Row Core with B-Tube Technology Brand: CSF — engineered cooling with 50+ years of expertise. The CSF Aluminum Radiator for MK4 VW delivers race-proven performance for street and track applications. Key Features 2-Row All-Aluminum Core — lightweight, durable construction for improved thermal transfer and reduced vehicle weight. B-Tube Technology — uniquely formed "B" shaped tubes brazed at the seam provide ~15% more heat transfer surface area versus conventional "O" tubes. Dual Liquid Laminar Flow — B-tubes act like two smaller tubes in one, increasing cooling efficiency within the same footprint. Precision Multi-Louvered Fins — optimized fin geometry and alignment maximize airflow and heat rejection, validated in CSF wind-tunnel testing. Track-Ready Design — ideal for high-horsepower builds and motorsports where consistent cooling is critical. Benefits Enjoy lower operating temperatures, improved engine reliability, and better performance under sustained load. The stronger brazed B-tube construction allows use of thinner aluminum for superior cooling without sacrificing strength. Why Choose CSF CSF radiators combine decades of manufacturing experience with advanced engineering to deliver an efficient, durable OEM-fit replacement or upgrade for MK4 VW owners seeking dependable thermal management.