CSF Radiator 1997 - 2002 Audi S4 (B5)

If you're looking to modify, upgrade, or simply keep up with the maintenance on an Audi B5 S4, upgrading the cooling system with new CSF's high-performance all-aluminum radiator is highly recommended CSF #7071. It's another crucial fix along with a laundry list of other items to replace and maintain on the iconic Audi B5 S4. Keep in mind that these cars are 15-20 years old, and if you haven't already had to replace your original plastic tank radiator, the time is definitely coming soon!

Introduced all the way back in 1997, the Audi B5 S4 came stock with a 2.7L twin-turbo V6 engine pushing out a base line of 250 hp and 258 lb-ft torque. A simple tune and a few basic bolt-on parts can easily add on 100 hp to one of Audi's most iconic sports cars that has become a favorite for track guys. The B5 S4 is definitely a sleeper and by slapping on bigger turbos, plus a few other high-performance upgrades, you'll definitely catch some people off guard. However, adding additional power means also the creation of more heat in the engine. This is when you need to get a high-performance all-aluminum radiator for your Audi B5 S4. Except. until now, there has not been a reliable, drop-in fit option with an acceptable price point offered in the market. CSF has answered the call!

The new all-aluminum high performance radiator from CSF is a 2-row 42mm core in a triple-pass configuration.

Exceptionally cut aluminum brackets and CNC machined fittings make for a perfect Audi B5 S4 all-aluminum radiator.

CSF's triple-pass technology allows the coolant to flow through the radiator core 3x rather than just flowing across the surface of the core once. This allows much colder ambient air to exchange heat with the coolant for a 3x longer period of time generating the lowest outlet temperature possible. Still with a drop-in fit!