The CSF 8154 is a high-performance heat exchanger with an integrated rock guard for the 2020-2026 Toyota GR Supra and BMW G-Series cars with the B48 and B58 turbo engines. It is the air-to-water intercooler heat exchanger that lowers intake air temperatures to prevent limp mode and drops coolant and oil temperatures. It uses a 2-row 42mm ultra-high-performance core with CSF's B-Tube Technology and track-spec 5mm multi-louvered fins, in 100 percent TIG-welded aluminum with CNC-machined brackets and OEM-style quick-connect fittings. It is a drop-in fit and includes a metal rock guard and a transmission oil cooler mounting kit.
- Type: air-to-water intercooler heat exchanger with rock guard
- Core: 2-row, 42mm ultra-high-performance, B-Tube Technology
- Fins: track-spec 5mm, multi-louvered
- Engines: B48 / B58 turbo
- Fittings: OEM-style quick-connect, CNC-machined brackets
- Included: metal rock guard and transmission cooler mounting kit
- Finish: satin, 100 percent TIG-welded aluminum
- Part number: 8154
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 330i and M340i
- BMW G22 and G23 430i and M440i
- BMW G26 430i and M440i Gran Coupe
- BMW G29 Z4
- BMW G42 M240i
FAQ
What vehicles does the CSF 8154 fit?
The 2020-2026 Toyota GR Supra and BMW G-Series cars with the B48 or B58 turbo engine (G20, G22, G23, G26, G29, G42).
What does the heat exchanger do?
It lowers intake air temperatures to prevent limp mode and reduces engine coolant and oil temperatures.
What is included?
A metal rock guard and a transmission oil cooler mounting kit.
Is it a drop-in fit?
Yes. It uses OEM-style quick-connect fittings and installs with no modifications.

