Description
CSF’s High-Performance Twin Intercooler Set replaces both factory intercoolers on the Audi C8 RS 6 Avant and RS 7. CSF developed it with VAG specialists Pacific German to stop the heat soak and rising intake air temperatures that make the C8’s ECU pull timing. Each cooler uses a two-row, Formula-1 grade PWR core with rolled tubes and inner fins, between CNC machined billet end tanks that are 100% TIG welded in place of the factory gasketed, crimped tanks. This listing is the Raw Billet finish, sold as a left and right set.
Key features
- Two-row Formula-1 grade PWR core with rolled tubes and inner fins
- CNC machined billet end tanks, 100% TIG welded
- Lower intake air temperatures and less heat soak than the OEM intercoolers
- CSF’s dyno results: +20 WHP / +18 WTQ on a stock tune, +10 WHP / +20 WTQ on a Stage 2 tune
- OEM-style inlet and outlet connections, drop-in fit with no modification
- Made in the USA at PWR North America
Specifications
- Type: intercoolers, left and right set
- Core: PWR two-row, rolled tubes with inner fins
- End tanks: CNC machined billet aluminum, TIG welded
- Finish: Raw Billet
- CSF part number: 8194
- Replaces OEM: 4K0 145 805 P (left), 4K0 145 806 B (right)
- Warranty: limited lifetime from CSF
Fitment
- 2021-2023 Audi RS 6 Avant (C8)
- 2024-2025 Audi RS 6 Avant Performance (C8)
- 2025 Audi RS 6 Avant GT (C8)
- 2021-2023 Audi RS 7 (C8)
- 2024-2025 Audi RS 7 Performance (C8)
- All with the 4.0L twin-turbo V8, per CSF’s application list
Good to know
- No tune is needed; the Stage 2 figures are CSF’s results on a tuned car.
- Bolt-on replacement for the factory intercoolers. It does not touch the exhaust or any emissions part.
- Professional installation recommended; installation is not included.











