The CSF 8178 is a twin charge-air-cooler set in a crinkle black finish for the 2018-2022 BMW F90 M5 and the 2020-2025 F91/F92/F93 M8, including Competition and CS trims, with the S63 twin-turbo 4.4L V8. It is a custom liquid-to-air design with about a 100 percent increase in core volume per charge cooler versus the OEM units, using one-piece seamless air-inlet end tanks with integrated charge pipes and 100 percent TIG-welded cast end tanks in place of the OEM crimped plastic. It carries OEM-style quick-connect water connections, sensor ports, and dual 1/8 NPT ports per cooler for E85 or methanol injection. It is a plug-and-play drop-in fit, and CSF testing showed about a 0.3-second improvement in 60-130 mph times. A raw finish and custom colors are available.
- Type: twin liquid-to-air charge-air-cooler set
- Core: about 100 percent more volume per cooler than OEM
- Construction: one-piece inlet end tanks with integrated charge pipes, 100 percent TIG-welded cast tanks
- Engine: S63 twin-turbo 4.4L V8
- Ports: OEM-style quick-connect water, sensor ports, dual 1/8 NPT E85/meth ports per cooler
- Performance: about 0.3s quicker 60-130 mph in testing
- Finish: OEM+ crinkle black
- Fitment: drop-in, no modifications
- Part number: 8178
Vehicle Applications
Direct fit on the following (S63 4.4L V8):
- 2018 BMW M5 (F90)
- 2019 BMW M5 (F90)
- 2020 BMW M5 (F90)
- 2021 BMW M5 (F90)
- 2022 BMW M5 (F90)
- 2020 BMW M8 (F91)
- 2021 BMW M8 (F91)
- 2022 BMW M8 (F91)
- 2023 BMW M8 (F91)
- 2024 BMW M8 (F91)
- 2025 BMW M8 (F91)
- 2020 BMW M8 (F92)
- 2021 BMW M8 (F92)
- 2022 BMW M8 (F92)
- 2023 BMW M8 (F92)
- 2024 BMW M8 (F92)
- 2025 BMW M8 (F92)
- 2020 BMW M8 Gran Coupe (F93)
- 2021 BMW M8 Gran Coupe (F93)
- 2022 BMW M8 Gran Coupe (F93)
- 2023 BMW M8 Gran Coupe (F93)
- 2024 BMW M8 Gran Coupe (F93)
- 2025 BMW M8 Gran Coupe (F93)
FAQ
What vehicles does the CSF 8178 fit?
The 2018-2022 BMW F90 M5 and 2020-2025 F91/F92/F93 M8, including Competition and CS trims, with the S63 4.4L V8.
How much larger is the core?
About 100 percent more core volume per charge cooler than the OEM units.
Does it support water/methanol injection?
Yes. Each cooler has dual 1/8 NPT ports for E85 or methanol injection.
Is it a drop-in fit?
Yes. It is a plug-and-play fit with no modifications. A raw finish and custom colors are available.

