Fitment Information
- BMW M2 G87 Turbo 3.0L L6 (2023, 2024, 2025)
- BMW M3 G80/G81 Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M3 G80/G81 Competition Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M3 G80/G81 Competition Automatic Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M3 G80/G81 Competition xDrive Turbo 3.0L L6 (2022, 2023, 2024, 2025)
- BMW M3 G80/G81 Competition xDrive Automatic Turbo 3.0L L6 (2022, 2023, 2024, 2025)
- BMW M3 G80/G81 CS Turbo 3.0L L6 (2024, 2025)
- BMW M4 G82/G83 Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M4 G82/G83 Competition Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M4 G82/G83 Competition Automatic Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M4 G82/G83 Competition xDrive Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M4 G82/G83 Competition xDrive Automatic Turbo 3.0L L6 (2021, 2022, 2023, 2024, 2025)
- BMW M4 G82/G83 CSL Turbo 3.0L L6 (2023, 2024, 2025)
Specs & Features
- 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
Product Description
The new CSF transmission oil cooler for the ZF8 automatic in the G8X M2/M3/M4 is engineered for high-performance and track-use applications. Featuring a unique dual pass design, the CSF Transmission Oil Cooler nearly triples the volume of the OEM unit and increases fluid capacity by ~94%.
The core features advanced micro-tube condenser technology derived from CSF's A/C cooling systems. Its 9-Channel Microtube design optimizes oil flow and offers maximum surface area contact. Installation is plug and play with the drop-in fit design. The CSF cooler retains OEM quick-connects and includes a replaceable rock guard for additional protection from road or track debris. This packaging helps preserve shifting performance, maintain optimal transmission oil temperatures, and extend transmission life in modified or race-prepped G8X M Cars.
CSF worked closely with development partner, sponsored race team, and premier local CSF Dealer Studio RSR as well as Time Attack Teams such as Art of Attack and Velocity Performance on the ZF8 Automatic Transmission Oil Cooler. Their insight, experience, and testing feedback provided invaluable insight into designing the best cooler possible.
Design, Development, and Testing
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.
Dual-Core Advantage
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 22mm 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.
Rock Guard
CSF knows the kind of punishment the front of a car can take on or off the track. The wrong bit of debris flying through the front grille can quickly punch a hole in a cooler. Because the Transmission cooler sits at the very front of the center cooling stack, it is quite vulnerable to damage. In addition, "open face" race style grilles have become quite popular on the G8X. These grilles can add to the risk of debris passing through.
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.
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