The CSF 8179 is a high-performance auxiliary radiator for the 2020-2026 Toyota GR Supra and BMW G-Series cars with the B48 and B58 turbo engines. It is a drop-in replacement that uses a 2-row 42mm core with CSF's B-Tube Technology and track-spec 5mm multi-louvered fins, in 100 percent TIG-welded aluminum with a thermal black protective coating. It fits either the left or right side, includes a detachable aluminum rock guard, and uses OEM-style quick-connect fittings. Two are required to replace both sides.
- Type: high-performance auxiliary radiator
- Core: 2-row, 42mm, B-Tube Technology
- Fins: track-spec 5mm, multi-louvered
- Engines: B48 / B58 turbo
- Fits either left or right side (two required for both)
- Included: detachable aluminum rock guard
- Finish: thermal black protective coating
- Part number: 8179
Vehicle Applications
Direct fit on the following (B48/B58 turbo):
- 2020 Toyota GR Supra
- 2021 Toyota GR Supra
- 2022 Toyota GR Supra
- 2023 Toyota GR Supra
- 2024 Toyota GR Supra
- 2025 Toyota GR Supra
- 2026 Toyota GR Supra
- BMW G20 M340i
- BMW G22, G23, and G26 M440i
- BMW G29 Z4
- BMW G42 M240i
FAQ
What vehicles does the CSF 8179 fit?
The 2020-2026 Toyota GR Supra and BMW G-Series cars (M240i, M340i, M440i, Z4) with the B48 or B58 turbo engine.
Does it fit the left or right side?
It is a multi-fit design that works on either the left or right side. Two are required to replace both sides.
Does it include a rock guard?
Yes. It includes a detachable aluminum rock guard.
How many rows is the core?
A 2-row 42mm core with CSF's B-Tube Technology.

