The Audi/VW 1.8L 20v Turbo inline 4 is a great motor. Over the years, it has proven stout when making more power and keeping the B5 A4’s weight low enough to be relatively light and nimble. A few bolt-ons, new turbos, and a tune can quickly get you to double the original horsepower of the motor. Unfortunately, these power gains come at the cost of a lot of extra heat.

CSF sought to develop a High-Performance Aluminum Radiator that would keep up with enthusiasts' needs by making more power and pushing their Audi to the limit. Whether you participate in Auto-X, Drag Racing, Track Driving, or just like hitting the backroads with vigor, the new CSF #7204 is what you need.

OEM vs. CSF

The 2-Row 42mm core significantly not only increases the fluid capacity of the radiator but also improves the core's ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance. More cooling rows also contribute to the overall efficiency of the radiator. More cooling tubes mean more surface area for the coolant’s heat to dissipate.

The TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity, so you can be confident it will hold up to more demanding driving conditions much better than the factory unit.

OEM Part Number:
 8D0 121 251 P