The CSF Racing 8183 is a high-performance transmission cooler for the 2020-2025 Toyota GR Supra and BMW G-Series cars with the 3.0L turbo inline-6. It uses an innovative dual-core design with two stacked 16mm cores totaling 32mm, a 240 percent increase in core volume and 130 percent more fluid capacity than the OEM cooler, built on CSF's AC-condenser technology with 9-channel microtubes and 5.4mm multi-louvered fins. It is a drop-in fit that works with the OEM or CSF heat exchanger, uses OEM-style quick-connect fittings and the original rubber seals, and includes a rock guard option.
- Type: high-performance transmission cooler
- Core: dual-core, two 16mm cores (32mm total), 9-channel microtubes
- Fins: 5.4mm, multi-louvered
- Capacity: 550ml (130 percent more than OEM 240ml); 240 percent more core volume
- Fittings: OEM-style quick-connect, original rubber seals
- Included: rock guard option
- Note: not compatible with late 2024-2025+ BMW G2X M340i/M440i (B58N)
- Part number: 8183
Vehicle Applications
Direct fit on the following (3.0L 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
Also fits the following BMW G-Series (3.0L turbo):
- BMW G42 M240i
- BMW G20 M340i and G2X M440i
- BMW G29 Z4 M40i
FAQ
What vehicles does the CSF Racing 8183 fit?
The 2020-2025 Toyota GR Supra and BMW G-Series cars (M240i, M340i, M440i, Z4 M40i) with the 3.0L turbo inline-6.
How much bigger is it than OEM?
It has a 240 percent increase in core volume and 130 percent more fluid capacity (550ml vs 240ml).
Are there any fitment exceptions?
It is not compatible with late 2024-2025 and newer BMW G2X M340i and M440i with the B58N engine.
Does it work with the OEM heat exchanger?
Yes. It is compatible with the OEM or CSF heat exchanger.

