CSF BMW G9X M5 High-Performance Charge-Air-Coolers

BMW G9X M5 Charge-Air-Coolers Features (CSF #8351)

• 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:
  • 2025+ BMW M5
  • 2025+ BMW M5 Touring

• OEM Part Numbers:
  • BMW: 17 51 5 A2C 232 (right)
  • BMW: 17 51 5 A2C 233 (left)

The M5 has long been the king of full size sport sedans and the new G9X M5 is no exception. People can complain about how big and heavy it has gotten. At the end of the day, it goes like hell, handles incredibly well, and is dripping in luxury. One of the limiting factors in making power on the S68 engine are the fragile factory charge air coolers. CSF quickly resolved that issue by revising the S63/S68 Charge-Air-Coolers for the F9X M5/M8/X5M/X6M for the new G90/G99 M5.

Sharing an engine with the F9X X5M/X6M meant there were readily available tunes and power upgrades for the engine when the new M5 hit the market. We have already seen the BMW S68 engine produce over 900whp on stock internals. However, that extra power creates a lot more heat and pressure. F9X M5/M6 & X5M/X6M owners have relied on CSF Charge-Air-Coolers (CSF #8178 & #8315) for years to deal with that extra power. Now, CSF is pleased to announce the High-Performance Charge-Air-Coolers for the G9X M5.

The Charge-Air-Coolers come in an OEM+ Crinkle Black Finish. In addition, custom finishes are available at an additional cost for those looking for a more unique engine bay look.

Design & Engineering

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. CSF worked with IND Distribution to quickly developed a new kit for the G90 and G99 M5.

OEM VS CSF

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.

This new kit has been independently tested on several G9X M5s by several companies and customers.

Custom Finishes

Click Here to see the gallery of all of CSF’s custom finishes.