The CSF 7070 is a right-side, all-aluminum replacement radiator for 991-generation Porsche 911 models, built on CSF's B-Tube core design. Ignore citations here since output must be raw HTML The manufacturer describes the tubes as a flattened "B" profile instead of a conventional oval, brazed closed along the seam, which lets the core use thinner aluminum while staying strong. For owners of 991.2 Carrera, Turbo, GT3, GT3 RS, and CUP cars who want a cooling upgrade for track days or high-horsepower builds, this unit is a direct alternative to the factory radiator.
Stock 991 radiators have plastic end tanks, and owners on user forums describe leaks at the plastic fittings. The CSF swaps those for aluminum construction with TIG-welded tanks and machined fittings. The manufacturer says the radiator was track tested at 110°F (43°C) and has finished first in Pirelli GT3 Cup competition, which matters if you run sustained laps where a stock core can soak heat. Its core is meant to deliver more airflow and heat rejection than the factory design, though the exact gain depends on the car and setup.
The manufacturer calls this a plug-and-play, drop-in fit that requires no modifications and accepts the OEM AC condenser and fan shroud, so you can keep your existing fans and condenser. Expect to pull front-end shrouds and bumper components, drain coolant, and disconnect hoses and sensors to access the radiator. Searches for "991 Turbo right radiator," "GT3 RS cooling upgrade," and "CSF 7070 install" lead to fitment questions, so confirm your VIN-specific part before ordering.
The manufacturer's 991 listings for this right-side unit name Turbo, GT3, GT3 RS, and CUP models. Confirm the correct right-side radiator for your specific Carrera with the manufacturer before ordering.
Yes. The manufacturer states the radiator accepts the OEM AC condenser and fan shroud, which is what makes it a drop-in replacement.
This is a direct-fit swap, but it is still a cooling-system job that takes a full afternoon or more. Plan on draining coolant, removing the front shrouds and bumper components for access, and disconnecting the hoses and electrical connectors. Reuse factory hardware and clamps where they are in good shape, and lightly coat O-rings and hose connections with Porsche coolant gasket lubricant. After refilling, vacuum-bleed the system and check for leaks before driving. Torque mounting hardware to spec, and confirm the procedure against the manufacturer's guidance for your model year.
