WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The factory cooling system on the F9X X3M and X4M faces significant thermal stress once boost levels are increased, leading to high intake air temperatures and transmission fluid overheating. The CSF 8331 replaces the restrictive factory setup with a combined Cooling Module that integrates a high-performance heat exchanger and a dual-core transmission cooler into a single unit. This design overcomes the tight space constraints of the X3M chassis, utilizing a 2-row 42mm core and CSF exclusive B-Tube technology to maximize heat dissipation.
Key Features
- Combined Heat Exchanger and Transmission Cooler module for maximum efficiency
- 2-Row 42mm ultra-high-performance heat exchanger core
- Exclusive B-Tube technology for increased heat transfer surface area
- Dual-core transmission cooler design with a 201% increase in core volume
- 1-Row Super-High Pressure 16mm 9-channel microtube for optimal oil flow
- 100% all-aluminum TIG-welded construction for durability
- Integrated metal rock guard for superior debris protection
- CNC machined mounting brackets and OEM-style quick-connect fittings
- Hand brushed satin finish
- 2-year limited warranty
Specifications
| Core Material | Aluminum |
| Core Thickness | 42mm (Heat Exchanger) / 16mm (Trans Cooler) |
| Construction | TIG-Welded Aluminum |
| Finish | Black |
| Grade | Performance |
| Installation | Drop-In Fit |
Fits
Fits the BMW F9X X3M and X4M, as well as G0X X3 and X4 M40i models. This module is specifically designed to address the cooling requirements of high-output S58 and B58 engines in these chassis.
Installation
This product is designed as a true plug-and-play drop-in fit. It installs in the OEM location using factory mounting points and quick-connect lines with no modifications required. CSF includes pre-installed foam strips for increased sealing. Installation should follow the manufacturer repair manual, and CSF recommends a qualified installation facility if you are not confident in performing the swap.
Warranty: 2-Year Limited Warranty.
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