eBay

CSF High-Performance Auxiliary Radiator

Like the other cooling systems on the F8X, the factory auxiliary radiators do a pretty good job in stock form. However, once you start adding a lot of power and pushing the car in aggressive driving conditions, the factory systems start to show its limitations. As more and more owners have pushed the limits of their S55, CSF saw the need and demand. The F8X platform is also almost a decade old with the newest examples being at least 5 years old. Over time the original coolers end up with damaged or clogged fins that greatly reduce their cooling capacity..

CSF designed the coolers to be a true “Drop-in Fit” for easy installation. Each cooler mounts in the factory location and uses the OEM quick connections. The High-Performance Auxiliary Radiators work in conjunction with the rest of the cooling system to reduce temperatures. They not only help keep temperatures in optimal ranges, but prolong the heat soak threshold. There’s nothing worse than having your track session cut short because you need to do a cooldown lap. Each CSF F8X Auxiliary Radiator can fit the left or right side. The fitting and plugs are swappable and can be easily setup for either side..

MANUFACTURER PART # 8258

Condition: 100% Brand New, Never Used or Installed
Availability: Direct ship from Authorized Distributor

Fitment:

2015-2018 BMW F80 M3 (incl. CS & Competition)
2015-2020 BMW F82/F83 M4 (incl. CS, GTS, & Competition)
2019-2021 BMW F87 M2 Competition (incl. CS)

**Sold Individually – All applications require 2 auxiliary radiators**

OEM #

BMW: 17-11-2-284-603 / 17112284603 (Left)
BMW: 17-11-2-284-604 / 17112284604 (Right)

Spec:

Sold Individually – all applications require 2 auxiliary radiators

Multi-Fit – Fits Both Left & Right Side

2-Row 42mm High-Performance Core Featuring CSF’s B-Tube Technology

Ultra Efficient 6.5mm Tall Fins with a Multi-Louvered Design for Maximum Surface Area Contact

Tank Volume increased by 10% and Core Size Increased by 6.4%

100% All-Aluminum TIG-Welded Construction

OEM Style “Quick Connect” Inlet/Outlet

True “Drop-in Fit” Requires No Modifications to Install

Includes Detachable Rock Guard

Individually Leak and Pressure Tested

High-Performance Upgrade Suitable for Professional Racing, Street Performance, or OEM Replacement

Satin Black Finish for OEM+ Look.

Warranty:

Please inspect your order upon receipt. No damage claims will be honored after 14 days of delivery.
All item we sold come with 60 days defective warranty from the date
We will cover shipping for exchange if we shipped incorrect quantity, incorrect item or defective item
In a case when return is requested, we require the buyer to follow standard RMA procedures by obtaining a RMA number before sending the product back to us.
***Returning an item without following proper procedures will delay the claim process, and we reserve the right to refuse any unauthorized return packages***.
In some occasions we might request images as supporting document for damage/ defective claims to help us determine the best and most effective resolution toward the problem. When this happens, a designated e-mail address will be provided to the buyer so images files can be attached, as the eBay message system does not allow image attachments at the moment.

Customer Services:

If you have any questions before buying or after you have purchased the item, please do not hesitate to contact our customer service support team. Our office hours are Monday to Friday 10am-6pm PST , we are off during the weekends and all major holidays and you will be guaranteed that your questions will be replied promptly. Normally we can reply your email within 24hr but if you email to us during weekends, we have to reply to you on the following Monday in the order as it's received. If you have a problem about your shipment, please email us to solve it before leaving a negative feedback.