CSF Porsche 955/957 Cayenne High-Performance Radiator

The 955/957 Cayenne has developed a well-earned reputation for cooling issues - the factory radiator is a plastic-tank, single-row aluminium core design that's generally decent quality, but genuinely insufficient for the demands this platform is often put through. Just driving on a hot day can push these SUVs toward overheating, and off-roading or towing makes it considerably worse. With these vehicles now 15-20 years old, cars still running the original radiator have typically lost further cooling efficiency from bent or damaged fins and internal tube clogging.

After nearly a full year of design work and testing, developed in partnership with off-road specialists intimately familiar with VAG platforms, CSF's High-Performance Radiator addresses this at the source. A 2-row, 42mm ultra-high-performance core uses CSF's exclusive B-Tube technology alongside new 5mm ultra-efficient multi-louvered fins, together increasing heat transfer area by 20-25% over a traditional radiator design. 100% TIG-welded all-aluminium construction replaces the factory's plastic tank design entirely for genuinely improved durability and longevity under hard driving conditions. Real-world back-to-back testing at Loveland Pass near Denver, using two similarly equipped 955 Cayennes on the same climb, showed a steady 18-20°F differential - both starting at 86.8°F (86°C), with the OE-radiator car finishing at 212°F (100°C) while the CSF-equipped car finished at just 194°F (90°C).

Works with: Factory mounting location - installs with no modifications or cutting required.

Why Choose This Radiator

• 20-25% more heat transfer area - CSF's exclusive B-Tube core plus new 5mm ultra-efficient fins
• 100% TIG-welded all-aluminium construction - replaces the OEM's plastic tank design entirely
• Real-world tested on the same mountain climb - 18-20°F cooler than OEM in back-to-back testing
• Purpose-built for demanding use - off-roading, overlanding, towing, hauling, and hot climates
• True drop-in fit - mounts in the factory location, no modifications or cutting required
• Genuine fix for a well-documented platform weakness - not a theoretical upgrade

Compatibility

• Porsche Cayenne (955, 2003-2006, 3.2L V6/4.5L V8, NA & Turbo)
• Porsche Cayenne (957, 2008-2010, 3.6L V6/4.8L V8, NA & Turbo)
• Porsche Cayenne S/Turbo/Turbo S (955/957)
• Audi Q7 (4L, 2007-2015) - shares this radiator platform
• Volkswagen Touareg (7L) - shares this radiator platform