The CSF 8400 is the Race X billet aluminum charge-air cooler manifold for Gen 2 B58 turbocharged BMW and Toyota Supra cars, an upgrade over the earlier 8200 Super Manifold. It is CNC-machined from billet and 100 percent TIG-welded, with a bar-and-plate air-to-water intercooler core that is 25 percent larger than the 8200 (15 rows versus 12). It can be configured for single or dual-pass water flow, includes an integrated top-feed port-injection fuel rail, individual nitrous or methanol injector ports per cylinder, an air inlet divider, expandable vacuum and parameter measurement ports, and a KIYLEX thermal rejection spacer, and ships with a complete hardware kit and installation diagrams. It does not fit the B58N variant, and mild-hybrid 48V models require modifications.
- Type: billet aluminum Race X charge-air cooler manifold (air-to-water)
- Core: bar-and-plate A2W, 15-row (25 percent larger than the 8200's 12-row)
- Construction: CNC-machined billet, 100 percent TIG-welded
- Engine: Gen 2 B58 3.0L turbo inline-6 (not B58N)
- Water flow: configurable single or dual-pass
- Features: top-feed fuel rail, per-cylinder nitrous/meth ports, air divider, KIYLEX thermal spacer
- Note: 48V mild-hybrid models require modifications
- Part number: 8400
Vehicle Applications
Fits Gen 2 B58 3.0L turbo cars, including the following (not B58N):
- 2020 Toyota GR Supra
- 2021 Toyota GR Supra
- 2022 Toyota GR Supra
- 2023 Toyota GR Supra
- 2024 Toyota GR Supra
- 2025 Toyota GR Supra
- BMW G20 M340i
- BMW G22 and G23 M440i
- BMW G30 540i
- BMW G01 X3 M40i
FAQ
What is the CSF 8400?
The Race X billet charge-air cooler manifold for Gen 2 B58 BMW and Toyota Supra cars, an upgrade over the 8200 Super Manifold.
How much bigger is the core than the 8200?
It uses a 15-row air-to-water core, 25 percent larger than the 8200's 12-row core.
Does it fit the B58N?
No. It does not fit the B58N variant, and 48V mild-hybrid models require modifications.
Can it run dual-pass water flow?
Yes. It can be configured for single or dual-pass water flow.
