CSF Left High-Performance Radiator for 991.1 Porsche 911 Carrera / 981 Porsche Boxster / 991 Porsche GT4 [7066]

CSF Left High-Performance Radiator for 991.1 Porsche 911 Carrera / 981 Porsche Boxster / 991 Porsche GT4 [7066]

CSF brings over five decades of expertise in manufacturing radiators, making its High-Performance All-Aluminum Radiator the ideal choice for maintaining optimal engine cooling in the Porsche 911 Carrera. Engineered for superior performance on both the street and the track, this radiator is essential for high-horsepower builds and race vehicles requiring enhanced cooling in demanding motorsport conditions. The radiator features a 2-row core equipped with CSF’s exclusive B-Tube Technology. Unlike conventional “O”-shaped radiator tubes, CSF’s innovative “B-tube” design is precisely formed and seam-brazed, creating a stronger and lighter structure. This advanced engineering allows for thinner aluminum material, which improves cooling efficiency. Additionally, the unique “B-tube” shape increases the heat transfer surface area by approximately 15%, delivering the efficiency of two smaller tubes within the same spatial constraints and enabling dual liquid laminar flow. To maximize cooling performance, CSF incorporates ultra-efficient, multi-louvered fins, meticulously aligned to optimize airflow through the radiator core. Each fin’s specifications are carefully measured, calculated, and tested in CSF’s wind-tunnel laboratory to ensure maximum heat rejection efficiency for every application.

HIGH EFFICIENCY MULTI-LOUVERED FINS

• CSF incorporates ultra-efficient multi-louvered fins, precisely aligned to optimize airflow through each radiator core. Fin specifications are meticulously measured and tailored for each application, undergoing rigorous testing in CSF’s wind-tunnel lab to ensure maximum heat rejection efficiency.

CSF’S EXCLUSIVE B-TUBE TECHNOLOGY

• CSF utilizes a specially engineered “B-Tube” design instead of the conventional oval-shaped “O” type radiator tube. These “B-Tubes” are carefully crafted and brazed over the seam to ensure a secure seal. This innovative design allows CSF to employ thinner, lighter aluminum materials while achieving superior cooling efficiency, as the “B-Tubes” are stronger than traditional welded “O” shape tubes. By incorporating a seam-brazed middle section, the “B-Tube” design increases the heat transfer surface area by approximately 15% compared to standard tubes. This configuration delivers the performance of two smaller tubes within the space of one, providing enhanced “dual liquid cooling” efficiency.

Features

• 2-row 42mm core featuring CSF’s exclusive b-tube technology (+20% efficiency)
• High-performance upgrade suitable for professional racing, street performance, or OEM replacement
• 6.5mm fin height with multi-louvered design for maximum surface area contact
• Individually leak and pressure tested
• All-aluminum design with 100% TIG-welded end tanks
• CNC machined brackets and fittings for superb fit and durability
• OEM-style machined inlet / outlet connections
• Smooth satin finish
• Plug-and-play “drop-in” fit with no modifications required for installation
• Works with OEM AC condenser and fan shroud

Specifications

• Core Size: 12.25 x 14.31 x 1.62
• Number of Rows: 2
• Tank Size:
  • Inlet: 14.93 x 2
  • Outlet: 14.93 x 2
• Hose Fitting:
  • Top Left: 1.37
  • Top Right: 1.37
  • Bottom: 1.37

Applications

• Porsche Boxster: 981 (2012-2016) – 2.7L F6
• Porsche Boxster S: 981 (2012-2016) – 3.4L F6
• Porsche Boxster GTS: 981 (2015-2016) – 3.4L F6
• Porsche 911 Carrera: 991.1 (2012-2016) – 3.4L F6
• Porsche 911 Carrera S: 991.1 (2012-2016) – 3.8L F6
• Porsche 911 Carrera GTS: 991.1 (2012-2016) – 3.8L F6
• Porsche 911 Carrera 4: 991.1 (2012-2016) – 3.4L F6
• Porsche 911 Carrera 4S: 991.1 (2012-2016) – 3.0L TT F6
• Porsche 911 Carrera 4 GTS: 991.1 (2015-2016) – 3.0L TT F6
• Porsche Cayman: 981 (2014-2016) – 2.7L F6
• Porsche Cayman S: 981 (2014-2016) – 3.4L F6
• Porsche Cayman GT4: 981 (2016) – 4.0L F6
• Porsche Cayman GTS: 981 (2015-2016) – 3.4L F6
• Porsche 911 Targa 4: 991.1 (2012-2016) – 3.0L TT F6
• Porsche 911 Targa 4S: 991.1 (2012-2016) – 3.0L TT F6
• Porsche 911 Targa 4 GTS: 991.1 (2016) – 3.6L F6

Notes

• Left radiator only, right radiator required to complete the kit

ABOUT CSF

The Racing & High Performance Division of CSF Inc. is dedicated to designing and producing the world’s most advanced, efficient, and dependable cooling solutions. CSF offers a broad range of state-of-the-art cooling systems, with over 250 distinct applications. These include high-performance all-aluminum direct-fit radiators, intercoolers, and oil coolers, as well as bespoke manufacturing tailored for racecars, power sports, off-road vehicles, marine, and industrial applications. Every cooling solution from CSF is meticulously crafted to ensure optimal engine temperature management, even in the most rigorous driving scenarios. With a legacy spanning over 50 years and more than 40 million cooling units distributed worldwide, CSF is widely regarded as a luminary in the industry.