CSF Aluminum Radiator for Audi/VW High-Performance Triple-Pass Flow

CSF Aluminum Radiator for Audi/VW — High-Performance Triple-Pass Flow Upgrade cooling for street, track, and high-horsepower builds. CSF brings over five decades of radiator engineering to this all-aluminum overhaul for Audi and VW engines. Designed to deliver lower outlet temperatures, improved durability, and race-ready performance. Key Features Triple-Pass Flow Structure: Coolant travels across the core three times for maximum heat rejection and the lowest possible outlet temperatures. 2-Row Core with B-Tube Technology: Unique "B"-shaped tubes increase heat transfer surface area (~15% more than standard tubes) and enable dual liquid laminar flow for superior efficiency. Stronger, Lighter Construction: Brazed B-tubes allow use of thinner aluminum for weight savings without sacrificing strength compared to welded "O" tubes. Precision Multi-Louvered Fins: Application-specific fin geometry, aligned for optimal airflow and validated in CSF wind-tunnel testing. Street & Track Ready: Engineered for daily drivers, performance builds, and motorsports environments that demand increased cooling capacity. Benefits Reduced engine temperatures under load Improved reliability for high-horsepower and forced-induction setups Enhanced durability with lightweight, purpose-built aluminum Optimized airflow and heat rejection for consistent performance Choose CSF for proven cooling technology that keeps your Audi or VW running cooler, longer, and harder. Ideal for enthusiasts and racers who demand professional-grade performance and engineering.