CSF High Performance Auxiliary Radiator BMW F8X M4 M3 M2C
Product Description
Upgrade your BMW F8X’s cooling system with the CSF High-Performance Auxiliary Radiators. Designed to outperform the factory units, these radiators are essential for high-power builds and track driving. Whether you're pushing your F8X M3, M4, or M2 Competition to the limits on the track or dealing with everyday driving, these radiators ensure optimal cooling and enhanced durability.
More on The CSF Story.
Please note: Sold individually, not as a pair.

Enhanced Cooling Capacity
With a larger 2-row 42mm core and an approximately 7% increase in core size, these radiators provide superior cooling efficiency and capacity compared to OEM units.
CSF’s Exclusive B-Tube Technology
Features an ultra-efficient core with 6.5mm tall fins and a multi-louvered design to maximise surface area contact and heat dissipation.
Increased Tank Volume
Tank volume is increased by 10% to further enhance cooling performance.
All-Aluminium Construction
100% TIG-welded aluminium construction for maximum durability and performance, replacing the original plastic mounts with a stronger modular design.
OEM-Style Quick Connectors
Designed for a true "drop-in fit" with no modifications required. Utilises OEM-style quick connect inlets and outlets for easy installation.
Integrated Stone Guards
Includes detachable stone guards to protect against road debris and prevent punctures that could lead to fluid spills.
OEM+ Satin Black Finish
Provides an OEM+ look while adding extra protection.
Individually Leak and Pressure Tested
Ensures reliability and performance.
2-Year Limited Warranty
Backed by a 2-year limited warranty with CSF for added peace of mind.

Applications
- 2019-2021 BMW F87 M2 Competition - Turbocharged 3.0L L6
- 2020-2021 BMW F87 M2 CS - Turbocharged 3.0L L6
- 2015-2018 BMW F80 M3 - Turbocharged 3.0L L6
- 2018-2020 BMW F82 M4 CS - Turbocharged 3.0L L6
- 2018-2020 BMW F83 M4 CS - Turbocharged 3.0L L6
- 2016 BMW F82 M4 GTS - Turbocharged 3.0L L6
- 2016 BMW F83 M4 GTS - Turbocharged 3.0L L6
- 2015-2020 BMW F82 M4 - Turbocharged 3.0L L6
- 2015-2020 BMW F83 M4 - Turbocharged 3.0L L6
OEM Part Numbers: BMW: 17 11 2 284 603, 17 11 2 284 604, 17112284603, 17112284604
Why Choose the CSF High-Performance Auxiliary Radiators?
Superior Cooling
Optimised for high-performance and aggressive driving, ensuring your engine stays cool and performs at its best.
Durable Design
All-aluminium construction with enhanced tank volume and core size for long-lasting reliability.
Easy Installation
True "drop-in fit" with OEM-style connections, making installation straightforward and hassle-free.
Enhanced Protection
Integrated rock guards protect against damage from road debris, providing added peace of mind.
Boost your BMW F8X's cooling efficiency with the CSF High-Performance Auxiliary Radiators. Ideal for both track and street use, these radiators enhance performance and durability.
Shipping & Delivery
Dispatch Times
Most stocked items dispatch within 1–2 business days. Some products may have longer lead times due to special ordering, availability, or build times. If your order contains multiple items, they may be shipped together once all items are ready unless otherwise agreed.
UK & International Shipping
We ship worldwide. Transit times vary depending on destination and courier. Tracking details are provided once your order is dispatched.
Import Duties & International Orders
International customers are responsible for all import duties, taxes, and clearance fees. These are not included in our prices and are outside of our control. Refusal or non-payment of import charges may result in return shipping, handling fees, and customs charges being deducted from any refund.
Damaged Shipments
If your parcel arrives visibly damaged, please refuse delivery or note the damage with the courier. If damage is discovered after opening, contact us immediately with photos. Do not install damaged items, as installation voids courier claims and return eligibility.
Returns
Returns must be authorised before sending anything back. Returns must be requested within 14 days of delivery and returned within 14 days of approval, in unused/uninstalled condition and in original packaging. Some items, including special-order, built-to-order, used, installed, or modified parts, are non-returnable.
Full details are available in our Shipping Policy and Returns & Refund Policy.
Warranty & Disclaimer
Warranty
Most products include a manufacturer’s warranty covering manufacturing defects only. Warranties do not cover wear and tear, improper installation, misuse or neglect, track use, competition or racing environments, labour costs, vehicle damage, downtime, or consequential loss. Warranty outcomes are determined by the manufacturer, not Clubsport Garage. Items must be returned for inspection at the customer’s cost unless agreed otherwise.
Fitment & Installation
Many products are aftermarket components and may require professional installation or minor adjustment. Perfect OEM-level fitment cannot be guaranteed. Professional installation by an experienced workshop is strongly recommended. Installed or used items cannot be returned.
Motorsport Use Disclaimer
Some products are intended for off-road, track, or motorsport use only and may not be legal for road use, for example non-TÜV/DOT-approved parts. It is the customer’s responsibility to ensure compliance with local laws, insurance requirements, and vehicle regulations. By purchasing and installing aftermarket parts, you accept all responsibility for ensuring compatibility, legal compliance, proper installation, and any resulting wear, damage, or failure.
Product Images & Descriptions
Product photos are illustrative and may differ slightly from the item supplied. If specific details are important, please contact us before purchasing.
Full details are available in our Terms of Service and related policy pages.

