Porsche 991.1 Carrera and 981 Boxster / Cayman CSF Performance Aluminum Radiators

To design the system for the 991 911, CSF leveraged its strategic partnerships and relationships with world-class tuners, builders, and race teams to offer the best possible cooling systems. Working with companies like M-Engineering, ES Motor, and Pacific German gives CSF great insight into the strengths and weaknesses of these modern Porsches, as well as real-world feedback and testing of new products.

Upgraded radiators help eliminate the concern of overheating. These advanced designs feature larger 2-Row, 42mm aluminum cores which increase the fluid capacity of the radiators and greatly improve heat dissipation. Paired with CSF’s Exclusive B-Tube Technology, heat transfer is increased by 20-25%. In addition, the new ultra-efficient 5mm multi-louvered fins maximize airflow through the core for the best possible performance. The result is the best possible thermal management under all driving conditions.

KEY DESIGN FEATURES

• 20-25% increase in heat transfer efficiency using CSF’s new 5mm Fin & Exclusive B-Tube Technology
• Improved cooling performance to support higher-boost and bigger turbos as well as additional heat generated by high-performance driving and racing.
• Engineered to withstand extreme conditions, providing reliability where it matters most
• Designed to fit perfectly in the OE location utilizing the factory ducting, mounting system, and A/C Condensers.

Whether you’re building a street sleeper or prepping for your next track day, CSF’s 991 Radiators are engineered to handle the heat and then some.

THE CSF ADVANTAGE

The CSF radiators feature the latest 5mm multi-louvered fins. These fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow. The core is much larger than the factory featuring 2-Row 42mm aluminum core. This both increases the fluid capacity of the radiator, and improves the cores ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. Combined with the new 5mm fins, heat transfer is increased by up to 25% overall. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance. 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 hard driving conditions. The CSF radiator mounts in the factory location and requires no modifications or cutting. The latest 5mm fin technology was introduced at the end of 2023 which offers even more heat transfer area and thermal efficiency than CSF’s tried and true 6.5mm fins. Porsche owners are known to push their cars hard and CSF is confident this radiator is ready to take on the most demanding conditions in the world.