BMW G9X M5 High-Performance Charge-Air-Coolers

CSF Radiators SKU: CSF-8351
Regular price Price: £3,084.00
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CSF originally designed the BMW S63 Charge-Air-Coolers for the F9X M5/M6. Over five hundred of these Intercooler kits have been sold with many of them on 1000+ hp builds. Due to the popularity and success of these previous kits, it wasn't long before our dealers and tuning partners got their hands on these new M5s. With a little R&D/Test fitting help from the likes of IND Distribution, Evolve/Eventuri, and R44 Performance, CSF quickly developed a new drop-in fit kit for the G90 and G99 M5.

The CSF Charge-Air-Cooler Cores are 100% larger in volume than the factory coolers. CFD analysis and testing was used to design the cores ensuring optimal performance as well as perfect fitment. Both coolers come with OEM-Style "Quick Connect" water connections as well as sensor ports for fast and easy installation. You can read the full press release of the full press release of the CSF #8178 Coolers for more details & performance data.

The weak OEM crimped-on plastic end tanks have been replaced with CSF's larger, CFD analyzed, 100% TIG-welded cast end tanks. CSF also integrated the charge pipe into the design of the top end tank eliminating the glued-on factory plastic charge pipes. This single piece cast design creates a much stronger system that can handle much higher boost pressures.

Integrated dual 1/8 NPT ports are located on both outlet side air tanks for quick and easy installation of aftermarket methanol/nitrous injection systems. The positioning of these ports have been carefully designed to place the injection system directly into the post-intercooled charge-air stream for maximum performance.

Real world testing on these coolers was originally performed on a Stage 3 F90 M5 with 900whp. While the vehicles differ slightly, the overall performance gains/results will be similar. These coolers are currently installed on the top 5 world's fastest S63 powered M cars. This includes Mr. Vanos 1200+ HP F90 M5. The G9X kit was dyno tested at 1000HP with just a tune prior to launch.

Features

  • Custom Designed CSF Liquid-To-Air Intercooler Core (CFD Analysis and Testing Completed to Ensure Optimal Performance)
  • 100% Increase in Core Volume Per Each Charge Cooler Compared to the OEM Charge Air Coolers
  • 1-Piece Seamless Air Inlet End Tanks with Integrated Charge Pipes
  • Integrated E85/Methanol Injection Ports Built into Air Outlet End Tank (Dual 1/8 NPT Ports Per Cooler)
  • Complete with OEM-Style "Quick Connect" Water Connections and Sensor Ports
  • Designed with 3D Scanning and Rapid Prototype Technology to Ensure Precise Fitment and Maximum Surface Area Utilization
  • "Drop-In Fit" Design - Requires Minor Modification for optimal fitment - see fitment notes
  • Significantly Reduces Intake Air Temperatures (IATs)
  • Finished with a Professional "Crinkle Black" Powder-Coated Finish (CSF #8315) - Custom Powder-Coating Available (Inquire for More Details on Lead Time and Pricing)
  • Sold as a Complete Set with Left and Right Charge-Air Coolers + Installation Hardware
  • Lifetime Warranty

Applications

Year Range Make Chassis Code Model Trim Engine / Trans / Etc Notes
2025-2026 BMW G90 M5 - Turbocharged 4.4L V8 See Fitment Notes
2025-2026 BMW G99 M5 Touring - Turbocharged 4.4L V8 See Fitment Notes

OEM Part Numbers

  • BMW: 17 51 5 A2C 232 *Right
  • BMW: 17-51-5-A2C-232 *Right
  • BMW: 17515A2C232 *Right
  • BMW: 17 51 5 A2C 233 *Left
  • BMW: 17-51-5-A2C-233 *Left
  • BMW: 17515A2C233 *Left