{"title":"2023+ FL5 Civic Type-R Cooling Systems","description":"","products":[{"product_id":"radium-coolant-tank-kit-2017-honda-civic-type-r-fk8-20-0427","title":"Radium Coolant Tank Kit | 2017+ Honda Civic Type-R FK8 \/ FL5 \u0026 Acura Integra Type-S (20-0827)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003e2017+ Honda Civic Type-R FK8 \/ FL5 \u0026amp; Acura Integra Type-S Coolant Tank Kit by Radium Engineering\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eBecause of continuous and intense heat cycles over time, plastic coolant tanks have a reputation of failing. Fortunately, the rugged 2-piece Radium Engineering replacement is CNC machined from aluminum. An because aluminum is a superior thermal conductor material, heat transfer is further improved. Additionally, the metal construction resists high coolant pressures commonly associated with race engines.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eThis kit directly replaces the plastic Honda\/Acura tank without making permanent modifications to the vehicle. A specially designed mounting bracket secures to existing threaded holes and Radium adapter fittings interface with the factory lines. The tank functionality remains the same as the OEM cooling system.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eThe Radium Engineering Coolant Expansion Tank has proved itself over the years in many applications all over the world, in race and street vehicles. The tank is CNC machined from aluminum consisting of two halves that are bolted together. Parts are anodized increasing longevity.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eThe internal volume of the Radium Engineering Coolant Expansion Tank is equivalent to the OEM tank resulting in no coolant loss. The internal design features two chambers that are NOT isolated from each other with cross-over passages at the top and bottom. The coolant tank also has an internal swirl feature aiding in deaerating the system.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2-Piece Billet Aluminum Tank\u003c\/li\u003e\n\u003cli\u003eAluminum Mounting Bracket\u003c\/li\u003e\n\u003cli\u003eAluminum Adapter Fittings\u003c\/li\u003e\n\u003cli\u003eHeater Hose, 5\/16\"\u003c\/li\u003e\n\u003cli\u003eOverflow Hose, 7\/32\"\u003c\/li\u003e\n\u003cli\u003eStainless Steel Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note: The kit includes all parts necessary for installation. The OEM 1.3 Bar Honda pressure cap can be re-used. Alternatively, the Radium Engineering Type-A cap is compatible as well.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2017-2021 Honda Civic Type-R FK8\u003c\/li\u003e\n\u003cli\u003e2023+ Honda Civic Type-R FL5\u003c\/li\u003e\n\u003cli\u003e2024+ Acura Integra Type-S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 - Radium Coolant Tank\u003c\/li\u003e\n\u003cli\u003eHoses and Fittings\u003c\/li\u003e\n\u003cli\u003eMounting Bracket and Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReferences\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/data.radiumauto.com\/PublicDocs\/19-0197.PDF\" target=\"_blank\"\u003eInstallation Instructions\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer Standard Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":15519914917958,"sku":"RAD 20-0827","price":322.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/products\/radium-engineering-rad-20-0427-12019660357702.jpg?v=1631211885"},{"product_id":"copy-of-hybrid-racing-low-temp-thermostat-2017-2023-honda-civic-type-r-and-2024-acura-integra-type-s-hyb-ltt-01-20","title":"Hybrid Racing Low Temp Thermostat | 2017+ Honda Civic Type-R \u0026 2024+ Acura Integra Type-S (HYB-LTT-01-20)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003e2017+ Honda Civic Type-R \u0026amp; 2024+ Acura Integra Type-S Low Temp Thermostat by Hybrid Racing\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eWe know the advantages of using a low-temperature thermostat in high-performance or race environments are evident. Opening the thermostat's valve at a lower temperature allows coolant to flow more freely during low-load sections of the racetrack. This enables the radiator to effectively regulate the engine's temperature within the optimal range during high-load sections. If a cooling system is pushed to its limits at the racetrack and overheating becomes an issue, a low-temperature thermostat can often resolve this problem. It achieves this by allowing the radiator to perform more cooling at lower engine loads, thereby preventing or delaying overheating during high-engine loads.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eOverall, low-temperature thermostats provide improved engine cooling, prevent temperature hunting, offer durability, and allow for customizable cooling systems. These advantages make them a valuable component, especially in high-performance applications where maintaining optimal temperatures is crucial for engine performance and longevity.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eOur HYPERCOOL thermostats are produced by an OEM supplier that has been in existence since 1954; Their thermostats are used in over 50% of cars manufactured in Japan and are widely utilized in motorsports events such as Le Mans and WRC. The durability of thermostats is crucial, especially considering the potential consequences of a malfunctioning thermostat and subsequent engine overheating. To ensure durability, we conduct rigorous testing on their low-temperature thermostats, including various cycles of heating and cooling, vibration testing, engine bench testing, as well as real-world testing in both road cars and race cars.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully open @ 68*C\/154.4*F\u003c\/li\u003e\n\u003cli\u003eOEM quality - Made in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReduces temp hunting\u003c\/li\u003e\n\u003cli\u003eIdeal for performance cars\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2017+ Honda Civic Type-R (FK8 \u0026amp; FL5)\u003c\/li\u003e\n\u003cli\u003e2024+ Acura Integra Type-S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 - Low Temp Thermostat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReferences\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/guides.hybrid-racing.com\/Guide\/Civic+Type+R+K30C\/384?lang=en\" target=\"_blank\"\u003eInstallation Instructions\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHybrid Racing's Standard Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hybrid Racing","offers":[{"title":"Default Title","offer_id":40707715792966,"sku":"HYB HYB-LTT-01-20","price":132.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/hybrid-racing-hyb-hyb-ltt-01-20-30433686159430.webp?v=1751863907"},{"product_id":"acuity-instruments-super-cooler-reverse-flow-silicone-radiator-hoses-2023-honda-civic-type-r-2024-acura-type-s-1986","title":"Acuity Super Cooler Reverse Flow Silicone Radiator Hoses | 2023+ Honda Civic Type-R \u0026 2024+ Acura Type-S (1986)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003eSuper Cooler Reverse Flow Silicone Radiator Hoses for 2023+ Honda Civic Type-R \u0026amp; 2024+ Acura Integra Type-S\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eACUiTY's Super-Cooler, Reverse-Flow Silicone Radiator Hoses can help your Civic or Integra to run cooler while using superior materials to help better deal with increased underhood temperatures. By reversing water flow through the radiator, these hoses actually help your Civic or Integra to cool itself more efficiently.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eThese hoses were developed as part of a project to help HRC (Honda Racing Corporation) cool their race cars more efficiently. They were also featured on the Team Honda Research FL5s that won 1st and 2nd in class at the 2024 running of the 25hrs of Thunderhill. Shortly after the release of the FK8 Civic Type R, ACUiTY engineers determined that Honda's K20C-equipped cars could reject more heat if the water flow through the radiator is reversed.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eSince the FL5 and DE5 share a very similar cooling pack, ACUiTY was able to port this discovery over to those platforms as well. The additional cooling achieved is due to how the intercooler rejects heat from charge air and how that heat flows through the lower part of the radiator. In very hot conditions on cars that also have upgrades like hood venting and an upgraded radiator, water temps were reduced by as much as an additional 4.5°F (2.5°C) after installing these hoses. On totally stock cars, temperature reduction is lower, close to 1°F (0.6°C) in hot conditions. In addition to this extra cooling power, the polyester-reinforced silicone construction helps the hoses handle temperatures up to 100°F hotter than the stock EPDM rubber hoses.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cspan\u003eAs an added benefit, the kit includes German-style hose clamps that have formed threads and rolled edges to help protect your radiator hoses from the cutting damage that traditional hose clamps often cause on silicone hoses. Also included in the kit is hardware to relocate the ECT2 sensor for improved accuracy of cold-side temperature reading.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePolyester-reinforced silicone construction can handle up to 100\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003eF higher underhood temps than OEM rubber hoses\u003c\/li\u003e\n\u003cli\u003eReverse-flow design aligns the radiator thermal gradient more ideally to help reduce water temps by up to an additional \u003cspan\u003e4.5°F (2.5°C) on cars already equipped with free-flowing grills, upgraded radiators, and vented hoods\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReversed flow more ideally aligns the radiator thermal gradient with the thermal gradient of the air passing through the radiator which helps the radiator to dissipate heat more effectively\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLowers radiator temperatures significantly while remaining impervious to high heats\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncludes hardware to relocate ECT2 for more accurate water temperature readings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eSuperior, German-style hose clamps with rolled edges secure hoses in place much better than stock clamps without damaging them\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2023+ Honda Civic Type-R\u003c\/li\u003e\n\u003cli\u003e2024+ Acura Integra Type-S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 - Hot Radiator Hose\u003c\/li\u003e\n\u003cli\u003e1 - Cold Radiator Hose\u003c\/li\u003e\n\u003cli\u003e1 - Sensor Port Fitting\u003c\/li\u003e\n\u003cli\u003e1 - Sensor Plug\u003c\/li\u003e\n\u003cli\u003e1 - 12-22mm German-style hose clamp\u003c\/li\u003e\n\u003cli\u003e4 - 35-45mm German-style hose clamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReferences\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1zt2CLmz_qP0HwzlR7XjEvikL0gcTtK6s\/view\" target=\"_blank\"\u003eInstallation Instructions\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/acuityinstruments.com\/pages\/warranty-and-return-policies\" target=\"_blank\"\u003eWarranty Information\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Acuity Instruments","offers":[{"title":"Default Title","offer_id":41180603777094,"sku":"ACU 1986","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/acuity-instruments-acu-1986-31080677638214.webp?v=1752692996"},{"product_id":"csf-high-performance-radiator-2023-fl5-civic-type-r-de5-acura-integra-type-s-7221","title":"CSF High-Performance Radiator | 2023+ FL5 Civic Type R \u0026 DE5 Acura Integra Type S (7221)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003e2023+ FL5 Civic Type R \u0026amp; DE5 Acura Integra Type S High-Performance Radiator by CSF Racing\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eCSF has a long and successful track record with Honda cooling systems. This history includes making factory radiators for Honda Performance Development (HPD). Honda utilized 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 that would be available to the masses. 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.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cstrong\u003eCSF vs OEM: \u003c\/strong\u003eThe 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 K20C1 is no exception. Anything you can do to help keep temperatures in check will improve longevity of your motor and components.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eJust like the HPD Race Radiator, the CSF FL5 Civic Type R \/ DE5 Integra Type S Radiator features the latest 5mm fin technology. The smaller fins significantly increase the heat exchange surface area improving overall cooling efficiency. A 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. Overall, testing has revealed that the CSF radiator decreases engine coolant temperatures by 6-8% compared to the factory radiator.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cstrong\u003eTesting CSF vs OEM: \u003c\/strong\u003eTesting was performed on a FL5 Civic Type R tuned to 294 whp and equipped with an upgraded\/larger Front Mount Intercooler. The larger front mount intercooler has been shown to raise engine coolant temperatures by ~7%. This is due to the airflow restriction over the radiator. Test results show a decrease of of 8°C engine coolant temperature with the CSF Radiator vs OEM. As you can see, a radiator upgrade will be very important to anyone running a larger intercooler. The upgraded radiator will also be beneficial to anyone tracking their car.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTrue Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications\u003c\/li\u003e\n\u003cli\u003e2-Row, 42mm Ultra-High-Performance Core\u003c\/li\u003e\n\u003cli\u003eCNC Machined Mounting Brackets and OEM Style Inlet\/Outlet\u003c\/li\u003e\n\u003cli\u003e100% All Aluminum TIG-Welded Construction\u003c\/li\u003e\n\u003cli\u003eNew 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eImproved overall cooling efficiency\u003c\/li\u003e\n\u003cli\u003eIncreases the heat transfer by approximately 15% over regular oval welded tubes\u003c\/li\u003e\n\u003cli\u003eMulti-louvered fins maximize airflow through the core\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2023+ FL5 Honda Civic Type R\u003c\/li\u003e\n\u003cli\u003e2023+ DE5 Acura Integra Type S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 - CSF Radiator Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2-Year Manufacturers Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"CSF Racing","offers":[{"title":"Default Title","offer_id":41997745782854,"sku":"CSF 7221","price":849.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/csf-racing-csf-7221-32062318510150.png?v=1754285416"},{"product_id":"apr-performance-carbon-fiber-radiator-cooling-shroud-right-and-left-panels-only-2023-honda-civic-type-r-cf-923020","title":"APR Performance Carbon Fiber Radiator Cooling Shroud | 2023+ Honda Civic Type-R (CF-923020)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003eCarbon Fiber Radiator Cooling Shroud for 2023+ Honda Civic Type-R by APR Performance\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eThe flow of air is not only limited to the outside of a car. To maximize cooling capabilities, a radiator needs a direct flow of air to allow an engine to maintain consistent temperatures on the race track. Because of structural gaps above the radiator, the flow of air could escape making the radiator not as efficient as it could be. To help improve the flow of air into the radiator, APR Carbon Fiber Radiator Cooling Plates can be utilized to channel the flow of air directly to the radiator. This will improve the efficiency of the radiator while adding a high-tech, race inspired look to your engine bay.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePre-preg. Carbon Fiber Manufacturing Process\u003c\/li\u003e\n\u003cli\u003eFade Resistant Epoxy Coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for Easy Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2023+ Honda Civic Type-R\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 - Set of Panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"APR Performance","offers":[{"title":"Left \u0026 Right Panels Only","offer_id":42247085981766,"sku":"APR CF-923020","price":675.0,"currency_code":"USD","in_stock":true},{"title":"Full Kit","offer_id":42247086014534,"sku":"APR CF-923022","price":871.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/Screenshot2024-10-23090738.png?v=1747675228"},{"product_id":"prl-baffled-coolant-expansion-tank-16-21-civic-1-5t-17-25-civic-type-r-24-integra-type-s-prl-exptnk","title":"PRL Baffled Coolant Expansion Tank | 16-21 Civic 1.5T \/ 17-25 Civic Type-R \/ 24+ Integra Type-S (PRL-EXPTNK)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003eBaffled Coolant Expansion Tank by PRL Motorsports\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eOver time, the factory plastic coolant expansion tanks that Honda\/Acura include from the factory can weaken and fail from heat and pressure cycles. The PRL Coolant Expansion Tank kit replaces the factory tank with a more robust aluminum version. This 6061 aluminum tank will not be effected by temperature and can hold higher pressures so it will out-last the factory tank. The reservoir also more than doubles the tank's coolant capacity to 1.32 quarts (1.25 liters), while the stock tank only holds .58 quarts (.55 liters) allowing for a greater volume of coolant to carry heat away from the engine internals while maintaining a tidy engine bay.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003ePRL's tank is constructed from 3mm thick aluminum and features internal baffling to prevent coolant sloshing and cavitation. The kit includes all necessary fittings to fit either the FK8\/FL5\/DE5 Civic Type-R\/Integra Type-S applications as well as the fittings needed to fit the 2016-2021 Civic with the 1.5t engines.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRobust 3mm 6061 Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eLaser Cut and TIG Welded for Unmatched Fit and Finish\u003c\/li\u003e\n\u003cli\u003eStriking Red or Black Anodized Finish with Laser Engraved Logos\u003c\/li\u003e\n\u003cli\u003eBillet Machined Barb Fittings and Sight Glass\u003c\/li\u003e\n\u003cli\u003eBuna-N O-Rings for Unmatched Temperature and Leak Resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHolds Higher Pressure Than Factory Tank\u003c\/li\u003e\n\u003cli\u003eMore Than Doubles the Factory Tank's Coolant Capacity \u003c\/li\u003e\n\u003cli\u003eInternal Baffling Prevents Coolant Sloshing and Cavitation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2016-2021 Honda Civic 1.5T\u003c\/li\u003e\n\u003cli\u003e2017-2021 Honda Civic Si\u003c\/li\u003e\n\u003cli\u003e2017-2025 Honda Civic Type-R\u003c\/li\u003e\n\u003cli\u003e2024-2025 Acura Integra Type-S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 - Fully welded and anodized expansion tank (red or black)\u003c\/li\u003e\n\u003cli\u003e1 - 1\/16” NPT 8mm barb fitting\u003c\/li\u003e\n\u003cli\u003e2 - 8AN ORB 14mm barb fittings\u003c\/li\u003e\n\u003cli\u003e1 - 8AN ORB 17mm barb fitting\u003c\/li\u003e\n\u003cli\u003e1 - 8AN ORB 8mm barb fitting\u003c\/li\u003e\n\u003cli\u003e1 - 10AN sight glass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePRL Motorsports warrants that all parts\/components manufactured by PRL Motorsports or sold under the PRL Motorsports brand, and directly purchased from PRL Motorsports or an Authorized PRL Motorsports Dealer honor a 12-month limited warranty from the date of purchase against manufacturing defects in the materials and craftsmanship.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003c\/div\u003e","brand":"PRL Motorsports","offers":[{"title":"Black","offer_id":42885281579078,"sku":"PRL PRL-EXPTNK-BLK","price":345.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":42885281611846,"sku":"PRL PRL-EXPTNK-RED","price":345.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/2017-honda-civic-type-r-2017-21-honda-civic-si-coolant-expansion-tank-black-344001_600x_565ebb37-e7c6-452e-bb19-4e9379ef04b4.webp?v=1751952081"},{"product_id":"prl-1-3-high-performance-1-3-bar-radiator-cap-type-a-16-21-civic-1-5t-2-0l-17-civic-type-r-23-integra-type-s-prl1-1012-1-blk","title":"PRL High Performance 1.3 Bar Radiator Cap - Type-A | 16-21 Civic 1.5T \u0026 2.0L \/ 17+ Civic Type-R \/ 23+ Integra Type-S (PRL1.1012.1.BLK)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003eHonda\/Acura 1.3 Bar Type-A Radiator Cap by PRL Motorsports\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eWe are proud to introduce the PRL Motorsports High-Performance 1.3 Bar Radiator Cap—a must-have upgrade for those seeking better cooling performance and style. Designed to boost engine efficiency, this cap is ideal for performance vehicles, daily drivers, and hot climates. A simple yet powerful solution that improves both cooling system reliability and aesthetics.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Rating:\u003c\/strong\u003e 1.3 Bar (18.8 PSI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Fit for Honda\/Acura Models:\u003c\/strong\u003e Easy installation on most factory radiators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Engine Bay Aesthetics:\u003c\/strong\u003e Clean, performance-oriented design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-quality materials to withstand heat and pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncreases pressure to raise the boiling point, helping prevent overheating\u003c\/li\u003e\n\u003cli\u003eLooks good in the engine bay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits MOST Honda \/ Acura Factory Radiators - Including:\u003c\/li\u003e\n\u003cli\u003e2016-2021 Honda Civic 1.5T \u0026amp; 2.0L\u003c\/li\u003e\n\u003cli\u003e2017+ Honda Civic Type-R FK8 \u0026amp; FL5\u003c\/li\u003e\n\u003cli\u003e2023+ Acura Integra Type-S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 - PRL 1.3 Bar Type-A Radiator Cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePRL Motorsports warrants that all parts\/components manufactured by PRL Motorsports or sold under the PRL Motorsports brand, and directly purchased from PRL Motorsports or an Authorized PRL Motorsports Dealer honor a 12-month limited warranty from the date of purchase against manufacturing defects in the materials and craftsmanship.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"PRL Motorsports","offers":[{"title":"Default Title","offer_id":42885563449414,"sku":"PRL PRL1.1012.1.BLK","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/prl-motorsports-high-performance-13-bar-radiator-cap-type-a-839027_600x_d7533f85-dad1-40fb-9fc8-8b13667d971c.webp?v=1751952077"},{"product_id":"cobb-tuning-radiator-hoses-2023-honda-civic-type-r-fl5-2024-acura-integra-type-s-bh2405-bk","title":"Cobb Tuning Radiator Hoses | 2023+ Honda Civic Type R FL5 \/ 2024+ Acura Integra Type S (BH2405-BK)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2\u003e2023+ Honda Civic Type R FL5 \/ 2024+ Acura Integra Type S Radiator Hoses\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eReplace your old, dried out factory radiator hoses with the COBB Tuning Silicone Radiator Hoses. Constructed of 3-ply reinforced silicone, these hoses will not only look better but also last longer. Silicone hoses have a higher operating temperature range, making them a must for any car that may see extended periods of aggressive driving or track time. COBB branding is found at both ends of the hose.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eReinforced silicone hoses have a higher temperature operating range, are more resistant to chemical reactions, and maintain their flexibility through a longer lifespan than factory rubber hoses. They happen to look much better, too.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3-Ply Reinforced Silicone\u003c\/li\u003e\n\u003cli\u003eIncreased Durability Over Stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLook better but also last longer\u003c\/li\u003e\n\u003cli\u003eHigher Operating Temperature Range\u003c\/li\u003e\n\u003cli\u003eIncreased Durability Over Stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2023-2025 Honda Civic Type R FL5\u003c\/li\u003e\n\u003cli\u003e2024-2025 Acura Integra Type S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's In The Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 - Radiator Hoses\u003c\/li\u003e\n\u003cli\u003e4 - Radiator Clamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLimited Manufacturers Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Cobb Tuning","offers":[{"title":"Default Title","offer_id":42951613907014,"sku":"COB BH2405-BK","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/BH1400-BK_main.jpg?v=1755754412"}],"url":"https:\/\/www.maperformance.com\/collections\/2023-fl5-civic-type-r-cooling-systems\/radiator-caps.oembed","provider":"MAPerformance","version":"1.0","type":"link"}