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CSF Cooling - Racing & High Performance Division FE1 Civic Si / DE4 Integra High-Performance All-Aluminum Radiator Center
$649.00
Hurry Low Stock
CSF has a long and successful track record with Honda cooling systems. This history includes making factory radiators for Honda Performance Development (HPD). Honda uses the CSF private label HPD Race Radiator for the FK8 Civic Type R TCR and recently took delivery of a new system CSF developed for the FL5. CSF used the information and experience from building this Race Radiator to design a High-Performance version for the new FL5 CTR and the FE1 Civic Si. Like the racing radiator, this new High-Performance version features CSF's latest 5mm fin cooling technology. The new fin design increases the heat transfer area of the radiator by 20-25% over other larger fin designs.The original OE radiator from Honda is a plastic tank with a single row aluminum core design. While this is generally accepted as good quality and durable, it is not the best option for high horsepower builds and hard driving. Turbo cars get hot, and the L15CA is no exception. Anything you can do to help keep temperatures in check will improve longevity of your motor and components.Just like the HPD Race Radiator, the CSF FE1 Civic Si / DE4 Integra Radiator features the latest 5mm fin technology. The smaller fins significantly increase the heat exchange surface area improving overall cooling efficiency. A 33% larger 2-Row 42mm aluminum core increases the fluid capacity of the radiator, and improves the cores ability to dissipate heat. CSF's Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance.The TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions. The CSF radiator mounts in the factory location and requires no modifications or cutting.CSF manufactures the most advanced/efficient radiator in the industry for your 1.5T 11th Gen Civic / DE4 Integra. CSF uses innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation.


  • 2-Row, 42mm Ultra-High-Performance Core
  • Cooling Tubes with CSF's Exclusive B-Tube Technology
  • New 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
  • CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
  • 100% All Aluminum TIG-Welded Construction
  • 1.4 Bar High Pressure Radiator Cap with CSF logo
  • 1-Hour "Mirror Finish" Hand Polish
  • True Plug-and-Play "Drop-in Fit" Installation Requires Absolutely No Modifications
  • Individually Leak and Pressure Tested


  • Coolant Hose Inlet Connection Type: OE Type Connection
  • Coolant Hose Outlet Connection Type: OE Type Connection
  • Core Height: 15.75 in.
  • Core Material: Aluminum
  • Core Row Quantity: 2
  • Core Thickness: 42mm
  • Core Width: 29.6875 in.
  • Down Flow Or Cross Flow Type: Down Flow
  • Finish/Color: Polished
  • Frame Included: No
  • Grade Type: Performance
  • Inlet Connector Type: Slip On
  • Inlet Diameter: 1.625 in.
  • Inlet Location: Top Left
  • Installation Type: Drop-In Fit Installation
  • Internal Engine Oil Cooler: No
  • Internal Transmission Oil Cooler: No
  • Mounting Hardware Included: No
  • Mounting Type: Mounts with OE Hardware
  • Outlet Connector Type: Slip On
  • Outlet Diameter: 1.625 in.
  • Outlet Location: Bottom Left
  • Prop 65 Yes/No: No
  • Radiator Cap Included: Yes
  • Tank Material: Aluminum
  • Thermostat Included: No
  • Title: FE1 Civic Si / DE4 Integra High-Performance All-Aluminum Radiator

Other Part Numbers:
CSF Radiators #csf7222

Proposition 65

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

Vehicle
2023-2024
Acura Integra
2023-2024
Honda Accord
2022-2024
Honda Civic
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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Claude W. Verified Customer   
04-12-25 - Oregon, United States

Fast and easy and smooth

Recommend this Company
5 / 5
Doug J. Verified Customer   
04-12-25 - California, United States

ALWAYS GREAT

Recommend this Company
5 / 5
Nathan R. Verified Customer   
04-12-25 - Tennessee, United States

Thank You for having this available

Recommend this Company
5 / 5