WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The factory cooling system in the Audi B8 chassis often struggles to manage temperatures during track sessions or on high-horsepower builds. The CSF 7091 replaces the standard radiator with a high-performance all-aluminum unit designed to prevent heat soak and maintain engine efficiency. CSF's exclusive B-Tube core technology increases heat transfer surface area by approximately 15% over conventional tubes, providing the cooling capacity of two smaller tubes within the same physical space.
Key Features
- 2-Row 42mm core featuring CSF's exclusive B-Tube technology
- Ultra-efficient 6.5mm multi-louvered fins for maximum airflow contact
- CNC-machined Quick-Connect inlet and outlet connections
- Upgraded plate-type transmission oil cooler included in the left side tank
- CNC-machined brackets and fittings for durability
- All-aluminum race-style drain plug
- Smooth satin finish
- True drop-in fit with no modifications required
Specifications
| Core Material | Aluminum |
| Tank Material | Aluminum |
| Core Configuration | 2-Row, 42mm (1.625 in) thick, Cross Flow |
| Inlet/Outlet | 1.5 in Quick Connect |
| Transmission Cooler | Internal Plate-Type included |
| Finish | Satin |
Fits
Fits the Audi B8 S4 and S5, as well as other Audi models equipped with 3.0L and 3.2L engines. The internal transmission cooler comes pre-plugged for manual transmission vehicles but is fully functional for automatic applications.
Installation
This radiator is a true drop-in fit application. It installs in the OEM location using factory mounting hardware, quick-connect hoses, the AC condenser, and the factory fan shroud. No modifications are necessary for a standard installation. CSF recommends a qualified installation facility if you are not confident performing the swap yourself.
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