Description
This CSF by PWR system is a reviewed, manufacturer-backed cooling upgrade recovered from Echo’s hidden P1 catalogue.
Why it belongs in the Echo catalogue
- Formula-1 performance-grade two-row cores developed with PWR.
- CNC-machined billet end tanks with 100% TIG-welded construction.
- True plug-and-play installation using the listed original connections and mounting points.
Fitment and important notes
CSF lists 8194 for 2021–2025 Audi C8 RS6 Avant and RS7 Sportback models with the turbocharged 4.0L V8, including the listed 2024–2025 Performance variants and 2025 RS6 Avant GT. Verify the exact vehicle identity and original charge-air-cooler connections before ordering.
Manufacturer part number: 8194
Installation note: Charge-air-system service, fastener torque, seal inspection, pressure testing, and coolant or fluid work must follow CSF and vehicle service information. Professional installation is recommended.





