Superior Cooling for Your B5 A4

Keep your Audi B5 A4 1.8T running at peak efficiency with the CSF High-Performance All-Aluminum Radiator. Designed for enthusiasts who demand more from their cooling system, this radiator is the ultimate solution for high-horsepower builds and track-day vehicles prone to heat soak.

Key Features & Benefits

• B-Tube Technology: Exclusive tube shape increases cooling surface area by 15%
• 2-Row Core: Optimized for maximum fluid capacity and heat transfer
• All-Aluminum Construction: Lightweight, durable, and superior to plastic tanks
• Direct Fit: Engineered for seamless installation in 1997-2001 Audi A4 and VW Passat models
• Multi-Louvered Fins: Maximizes airflow for rapid heat dissipation

CSF utilizes advanced B-Tube technology, which replaces standard oval tubes with a specially engineered 'B' shape. This design allows for thinner, lighter aluminum material while significantly increasing structural integrity and cooling efficiency. By brazing the seams, CSF ensures a leak-free, high-pressure environment that outperforms factory units. Whether you are navigating stop-and-go traffic or pushing your turbocharger to the limit on the circuit, this radiator provides the thermal headroom necessary to prevent overheating and maintain consistent engine performance. Experience the cooling innovation available at GGCRACING.