CSF Core design – Rolled Tube & Billet End Tanks
The CSF intercooler for the C8 RS6 & RS7 is a larger, more efficient intercooler for significantly improved cooling power.
PWRs rolled tube cores are optimised in PWRs in-house wind tunnel, through this process PWR select the optimum stack height and multi-louvred fin design for both the ambient and pressure sides for optimum balance between cooling power and pressure drop.
| OE | CSF | |
| Number of tubes | 22 | 45 |
| Tube height | 7mm | 3mm |
| Fin height | 7mm | 4.85mm |
| End-tanks to core connection | Core crimped onto plastic end-tank with gasket | Core and end-tank TIG-welded |
Benefits
- Eliminates heat soak
- Lowers charge air temperatures
- Eliminates end-tank failure at elevates boost levels
- VF Engineering saw ≈ +20 whp + 18wtq increase on a stage 1 tune
- VF Engineering saw ≈ +10 whp + 20tq increase on a stage 2 tune
Features
- Formula-1 Performance Grade Core by PWR (2-Row Core Featuring Rolled Tubes w/ Inner Fins)
- 45 Tubes vs. OEM 22
- 3mm Rolled Tube vs. OEM 7mm
- 4.85mm Fin Height vs. OEM 7mm
- CNC Machined Billet End Tanks
- 100% TIG-Welded vs. OEM Style Gasket and Crimped Plastic End Tanks for Maximum Durability in High Boost Applications
- OEM Style CNC Machined Inlet/Outlet Connections for Precise Fitment with All OEM Components
- Highly Engineered, Lightweight Design
- True Plug-and-Play “Drop-in Fit” Installation
- Made in the USA at PWR North America
CSF Manufacturing, Testing & Finish
These intercoolers are manufactured PWRs North American factory, this means PWR has total control over our production, unlike other white-label brands. PWR’s intercoolers start life in their factory as an aluminium sheet or bar and from there they create their own rolled tubes, multi-louvred fins, CNC machine all of the fittings. The core is then CAB brazed in their state of the art clean room and the end-tanks and fittings TIG welded together by their master welders.
All of PWR’s intercoolers are individually leak tested and go through a fitment inspection to ensure critical dimensions are per CSF’s design.
To finish the intercoolers are only available in a raw finish.
OEM part number: 4K0 145 805 P (Left) & 4K0 145 806 B (Right)
Compatible models: 2020+ Audi C8 RS6/RS7
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