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  See more parts for BMW 230i
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CSF Radiators BMW F3X/F2X B58/B48 Triple-Pass Heat Exchanger with Rock Guard - Black - 8131B
CSF Radiators BMW F3X/F2X B58/B48 Triple-Pass Heat Exchanger with Rock Guard - Black - 8131B - Image 4 CSF Radiators BMW F3X/F2X B58/B48 Triple-Pass Heat Exchanger with Rock Guard - Black - 8131B - Image 2 CSF Radiators BMW F3X/F2X B58/B48 Triple-Pass Heat Exchanger with Rock Guard - Black - 8131B - Image 3 CSF Radiators BMW F3X/F2X B58/B48 Triple-Pass Heat Exchanger with Rock Guard - Black - 8131B - Image 4
If you're pushing the limits of your BMW's B58 engine, you know how crucial it is to keep everything running cool. That's where the CSF high-performance heat exchanger comes into play. This isn't just a simple upgrade; it’s a game-changer for anyone who's added a bigger turbo or cranked up the tuning software. The stock B58 heat exchanger is a single-row unit that’s only 27mm thick, which just doesn’t cut it when you’re looking for maximum performance. CSF has stepped up the game with their 2-row core that’s a whopping 68mm thick, utilizing their exclusive B-Tube technology. This means more surface area for cooling, which is essential when you’re pushing your engine hard. And don’t worry about fitment; the smart tank design allows this bigger core to slide right into the OEM housing without any fuss. One of the standout features is the triple-pass flow design. What does that mean for you? Simply put, the water flows through the heat exchanger three times before it heads back to the manifold charge cooler. This ensures that the outlet water temperature is as low as it can get, which is vital for performance. Unlike the OEM setup and other aftermarket options that only have a single-pass flow, this design really maximizes cooling efficiency. Plus, it comes in a sleek Satin Black finish, giving your engine bay that OEM+ look. If you’re feeling a bit flashy, there’s also a polished version available. Installation? It’s a drop-in fit, so no modifications are needed. The CSF heat exchanger includes CNC machined mounting pins and brackets, plus quick connect fittings for easy setup. Here are some specs that might interest you: it measures 524mm in length, 478mm in height, and 69mm in width. The core is made from aluminum, and the multi-louvered fin height is 6.5mm, which helps with airflow. And yes, it comes with a detachable rock guard to keep everything protected while you’re out there tearing up the roads. This heat exchanger is a must-have for a range of BMW models, including the 120i, 125i, 220i, 330i, and even the M240i, just to name a few. If you want to keep your intake air temperatures in check and ensure your engine performs at its best, the CSF heat exchanger is the way to go.

Other Part Numbers:
CSF Radiators #csf8131B

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2017-2021
 BMW 230i
2016-2018
 BMW 330e
2017-2019
 BMW 330i
2016-2019
 BMW 340i
2017-2020
 BMW 430i
2017-2020
 BMW 440i
2017-2021
 BMW M240i
CSF Radiator

Anyone who needs a new radiator should consider buying a CSF radiator. A CSF radiator and CSF cooling system offers the best performance for driving and racing enthusiasts. If you have a faulty radiator or are looking to upgrade to a high-performance radiator, a CSF radiator will get the job done. 

What is a CSF Radiator?

During the last 40 years, CSF has manufactured over 10,000 different models of radiators, oil coolers, heat exchangers and condensers for Automotive, Truck, Industrial and Marine applications. Today, their products are sold in over 60 countries throughout the world. Their US Aftermarket Division stocks over 1000 models that cover over 2100 applications for all popular Import vehicles.

CSF supplies radiators and condensers that are designed to meet or exceed original equipment (OE) engineering specifications. Their plants meet ISO 9000 standards and provide parts to OE manufacturers, and to top it all off - check out their industry leading warranty. Simply put, you cannot buy, sell, install or own a better value radiator or condenser.

Why Should I Buy a CSF Radiator? 

A CSF radiator offers a number of benefits over the competition. Below, we explain the main reasons why you should buy a CSF radiator.

A Market Leader for over 45 Years

CSF has been a market leader for over 45 years, as the company was initially established in 1975 and have been selling CSF radiators ever since. Over time, a CSF radiator has become known for its innovative design and impeccable quality.

High-Quality Radiator Testing

Every single CSF radiator and CSF cooling system has been put through a rigorous series of tests to make sure every system is reliable and performs at a high level. In their testing lab, CSF puts in the time to make sure every product works perfectly. 

Cutting-Edge Technology

Each CSF radiator uses cutting-edge technology to bring customers the best CSF full cooling system possible. CSF racing radiators combine a high-efficiency core, advanced endtank designs, and innovative design and engineering to give our customers the most advanced and efficient radiator possible.  

Get a CSF Radiator or CSF Cooling System From Vivid Racing 

Vivid Racing carries a wide selection of CSF radiator products, including CSF cooling systems and other accessories. If you are interested in learning more or would like to purchase a CSF radiator, please contact Vivid Racing today by calling (480) 966-3040.

CSF takes pride in the quality of its products and offers one of the best warranty’s in the industry. Please refer to the CSF warranty card in the shipping carton for details.

CSF warranty is applicable only to the original owner of the vehicle. Original paper work verifying the proof of purchase and pre-installation cooling system checklist signed by the professional installer is required to process warranty claims.

All warranty claims should be directed to the point of purchase. Due to CSF’s established agreements with Authorized CSF Warehouse Distributors, CSF is unable to handle and/or process warranty related calls/inquires from any individuals – all inquires/warranty related claims should be directed to the point of purchase or an authorized warehouse distributor.

Take care of your radiator, as under circumstances listed below the warranty will be void.

If the radiator is installed and is returned deformed (bulging tanks, warped core etc.), this is an indication that the radiator is the victim of some other problem and not the cause. The deformation is a result of the radiator being subjected to extremely high pressure and or temperature caused by any of the following reasons:Defective Pressure Cap, Defective Head Gasket, Defective Temperature gauge (incorrect readings), Defective Water Pump etc. Such units are not covered under the warranty.

If a radiator seems to have a “fit problem” there is the possibility that there is some confusion about a multi-fit radiator that might look different. Your nearest CSF WD can clarify the application, just give them a call. A perceived fit problem is not covered under warranty.

If a unit is damaged in shipping, please file a claim with the carrier. Damages caused during shipping, installation or handling are not covered under warranty.

Any repairs or alterations to the unit will automatically void the warranty.

Any form of abuse, including the use of improper coolant mixtures, damage caused by steam, corrosion etc and use on commercial vehicles voids the warranty. It is the vehicle owners’ responsibility to maintain the cooling system as specified in the owners manual.

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