CSF BMW M3/M4 (G8x) Transmission Oil Cooler w/Rock Guard

StudioRSR is proud to be the first to test, install, and race with the CSF G8x M3/M4 Heat Exchanger as another development project & partnership with CSF. Read More here

BMW G8X M3/M4 Transmission Cooler

Whenever you start pushing power on a car, you need to make sure the cooling system can keep up. CSF’s new G8X M3/M4 Transmission Oil Cooler for the ZF8 Automatic should definitely be at the top of your list.

Dual Core upgrade:
By changing from the OEM single core design to a dual core, CSF was able to increase the overall volume by 194%. This design offers a drastic improvement in heat dissipation and increases the fluid capacity of the coolers by ~94%. Utilizing CSF’s AC Condenser Technology, a 1-Row Super-High Pressure 16mm 9-Channel Microtube design optimizes oil flow and offers maximum surface area contact. These features combine to offer the best possible heat dissipation from the system.

While the OEM Transmission Cooler is adequate for the G8X in stock form, it starts to come up a bit short on modified/tuned vehicles. Specifically ones that see heavy track/competition use. Transmission oil temperatures have a major impact on the shifting performance of your automatic transmission. If the fluid passes optimal temperatures you will start to see some delays in shifting. Sluggish shifting can be quite frustrating, but the real concern is the damage that can be done to the transmission when temperatures get too high. There are often cases where drivers don’t notice the change in shifting performance due to the gradual onset, but the damage is still being done slowly on a very expensive and important component.

Integrated Rock Guard:
The factory grille is the only form of protection for the OEM transmission cooler. However, this still isn’t the level of protection many race teams and enthusiasts are comfortable with. To address this concern, CSF has incorporated a replaceable rock guard to keep your cooler safe and your G8X running strong in the event of debris making it through the front grille.

• Dual-Core Design
  • 194% Increase in Core & Tank Volume
  • 94% Increase in Fluid Capacity Compared to OEM (CSF 1700ml vs. OEM ~875ml)
  • Two 22mm Stacked Cores = 44mm Core Thickness vs. OEM 28mm Core Thickness
  • Rear Cooler: 16 Rows vs. OEM 14 Rows (191mm Overall Height vs. OEM 155mm)
  • Front Cooler: Additional 16 Rows
• Made with CSF’s AC Condenser Technology Using a 1-Row Super-High Pressure 16mm 9-Channel Microtube for Optimal Oil Flow and Maximum Surface Area Contact 
• Utilizes OEM Top/Bottom Rubber Seals for Optimal Airflow
• OEM Style “Quick Connect” Inlet/Outlet Connections 
• Drop-in Fit Requires No Modifications to Install 
• Can be Installed With CSF’s High-Performance Heat Exchanger (CSF #8215) or with the OEM Cooling System
• 2-Year Limited Warranty
• Ideal for Road Racing, Drag Racing, and Vehicles With Increased Performance and/or Transmission Tuning

• Applications:
  • 2021+ BMW G80 M3 (incl. Competition) – ZF8 Auto Only
  • 2021+ BMW G82/G83 M4 (incl. Competition) – ZF8 Auto Only

• OEM Part Number:
  • BMW: 17-11-8-095-284