{"product_id":"csf-f8x-m3-m4-m2c-auxiliary-radiators-w-rock-guards-sold-individually-fits-left-and-right","title":"CSF F8x M3\/M4\/M2C Auxiliary Radiators w\/ Rock Guards (Fit Left \u0026 Right Side)","description":"\u003cp\u003eLike 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\u003cspan\u003e \u003c\/span\u003edamaged or clogged fins\u003cspan\u003e \u003c\/span\u003ethat greatly reduce their cooling capacity.\u003c\/p\u003e\n\u003cdiv class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-25222_b1dd28-29\"\u003e\n\u003cdiv class=\"kt-block-spacer kt-block-spacer-halign-center\"\u003e\u003chr class=\"kt-divider\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"wp-block-heading\" id=\"h-design-amp-engineering\"\u003eDesign \u0026amp; Engineering\u003c\/h2\u003e\n\u003cp\u003eCSF 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.\u003c\/p\u003e\n\u003cp\u003eEach 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.\u003c\/p\u003e\n\u003ch3 class=\"wp-block-heading has-text-align-center\" id=\"h-oem-vs-csf\"\u003eOEM vs CSF\u003c\/h3\u003e\n\u003cdiv class=\"kb-gallery-wrap-id-25222_204dcf-eb alignnone wp-block-kadence-advancedgallery\"\u003e\n\u003cul class=\"kb-gallery-ul kb-gallery-non-static kb-gallery-type-grid kb-gallery-id-25222_204dcf-eb kb-gallery-caption-style-bottom-hover kb-gallery-filter-none kb-gallery-magnific-init kb-light-gallery-1\" data-image-filter=\"none\" data-item-selector=\".kadence-blocks-gallery-item\" data-lightbox-caption=\"true\" data-columns-xxl=\"2\" data-columns-xl=\"2\" data-columns-md=\"2\" data-columns-sm=\"2\" data-columns-xs=\"1\" data-columns-ss=\"1\"\u003e\n\u003cli class=\"kadence-blocks-gallery-item\"\u003e\n\u003cdiv class=\"kadence-blocks-gallery-item-inner\"\u003e\n\u003cfigure class=\"kb-gallery-figure kb-gallery-item-has-link kadence-blocks-gallery-item-hide-caption\"\u003e\u003ca href=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1.jpg\" class=\"kb-gallery-item-link\" role=\"button\" aria-haspopup=\"dialog\" aria-label=\"Display lightbox image: 1\"\u003e\n\u003cdiv class=\"kb-gal-image-radius\"\u003e\n\u003cdiv class=\"kb-gallery-image-contain kadence-blocks-gallery-intrinsic kb-gallery-image-ratio-land32 kb-has-image-ratio-land32\"\u003e\u003cimg decoding=\"async\" src=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1.jpg\" width=\"900\" height=\"600\" alt=\"\" data-full-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1.jpg\" data-light-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1.jpg\" data-id=\"25236\" class=\"wp-image-25236\" srcset=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1.jpg 900w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1-300x200.jpg 300w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1-768x512.jpg 768w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/BMW-17112284603_1-600x400.jpg 600w\" sizes=\"(max-width: 900px) 100vw, 900px\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"kadence-blocks-gallery-item\"\u003e\n\u003cdiv class=\"kadence-blocks-gallery-item-inner\"\u003e\n\u003cfigure class=\"kb-gallery-figure kb-gallery-item-has-link kadence-blocks-gallery-item-hide-caption\"\u003e\u003ca href=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3.jpg\" data-alt=\"CSF Race BMW F8X M3\/M4 High-Performance Auxiliary Radiator Fittings - CSF #8258\" class=\"kb-gallery-item-link\" role=\"button\" aria-haspopup=\"dialog\" aria-label=\"Display lightbox image: 2\"\u003e\n\u003cdiv class=\"kb-gal-image-radius\"\u003e\n\u003cdiv class=\"kb-gallery-image-contain kadence-blocks-gallery-intrinsic kb-gallery-image-ratio-land32 kb-has-image-ratio-land32\"\u003e\u003cimg decoding=\"async\" src=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3-1024x683.jpg\" width=\"1024\" height=\"683\" alt=\"CSF Race BMW F8X M3\/M4 High-Performance Auxiliary Radiator Fittings - CSF #8258\" data-full-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3.jpg\" data-light-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3.jpg\" data-id=\"25228\" class=\"wp-image-25228\" srcset=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3-1024x683.jpg 1024w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3-300x200.jpg 300w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3-768x512.jpg 768w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3-1536x1024.jpg 1536w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3-600x400.jpg 600w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/07\/8258_3.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"wp-block-table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eOEM\u003c\/th\u003e\n\u003cth\u003eCSF\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Width \u0026amp; Rows\u003c\/td\u003e\n\u003ctd\u003e41mm – 1-Row\u003c\/td\u003e\n\u003ctd\u003e42mm – 2-Row\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e# Cooling Tubes\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e# Cooling Fin Rows\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFin Height\u003c\/td\u003e\n\u003ctd\u003e8mm\u003c\/td\u003e\n\u003ctd\u003e6.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eAll-Aluminum\u003cbr\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e100% All-Aluminum\u003cbr\u003eTIG-Welded Construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eCompared to the OEM F8X coolers, the CSF units are a significant upgrade. CSF eliminated the OE plastic mounting pod by incorporating it into the modular design that fits both sides. This design improvement increases the size of both the core and tanks. The extra space taken from the mounting pod allowed for a ~7% increase in Core Size and an ~10% increase in Tank Volume. With a larger 2-row 42mm core, cooling efficiency and capacity are drastically increased. The high efficiency core using\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/news.csfrace.com\/the-csf-difference-tech-quality\/#radiators\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eCSF’s Exclusive B-Tube Technology\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003emaximizes airflow and heat dissipation. 100% All-Aluminum construction ensures the best performance and durability. The mounting pins and brackets are much stronger and more durable than the OE plastic pod mounting system. In addition, the black finish provides extra protection and offers a stealthy look behind the grilles of your F8X.\u003c\/p\u003e\n\u003cp\u003eIn addition, the CSF auxiliary radiators also feature integrated bolt on rock guards to keep the coolers safe. You’ve no doubt heard horror stories about OEM coolers getting punctured and spilling fluids all over the road or track. Now you can feel more confident that your cooling system is safer from road debris.\u003c\/p\u003e\n\u003ch3 class=\"wp-block-heading has-text-align-center\" id=\"h-modular-design\"\u003eModular Design\u003c\/h3\u003e\n\u003cp\u003eCSF used a modular design so the auxiliary radiator can fit either side. There are several benefits to this type of design and offers several benefits. One of those benefits is for serious track applications. Having spare parts is always a great idea. Having one auxiliary radiator that fits both sides where you’d normally need one of each is a big cost and space saver. Getting an extra as backup is more cost\/space efficient with the CSF units.\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading\" id=\"h-installed-images\"\u003eInstalled Images\u003c\/h2\u003e\n\u003cdiv class=\"kb-gallery-wrap-id-25222_cac308-9c alignnone wp-block-kadence-advancedgallery\"\u003e\n\u003cul class=\"kb-gallery-ul kb-gallery-non-static kb-gallery-type-masonry kb-masonry-init kb-gallery-id-25222_cac308-9c kb-gallery-caption-style-bottom-hover kb-gallery-filter-none kb-gallery-magnific-init kb-light-gallery-4\" data-image-filter=\"none\" data-item-selector=\".kadence-blocks-gallery-item\" data-lightbox-caption=\"true\" data-columns-xxl=\"3\" data-columns-xl=\"3\" data-columns-md=\"3\" data-columns-sm=\"2\" data-columns-xs=\"1\" data-columns-ss=\"1\"\u003e\n\u003cli class=\"kadence-blocks-gallery-item\"\u003e\n\u003cdiv class=\"kadence-blocks-gallery-item-inner\"\u003e\n\u003cfigure class=\"kb-gallery-figure kb-gallery-item-has-link kadence-blocks-gallery-item-hide-caption\"\u003e\u003ca href=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-rotated.jpg\" class=\"kb-gallery-item-link\" role=\"button\" aria-haspopup=\"dialog\" aria-label=\"Display lightbox image: 1\"\u003e\n\u003cdiv class=\"kb-gal-image-radius\"\u003e\n\u003cdiv class=\"kb-gallery-image-contain kadence-blocks-gallery-intrinsic\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-rotated.jpg\" width=\"1440\" height=\"1920\" alt=\"\" data-full-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-rotated.jpg\" data-light-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-rotated.jpg\" data-id=\"25974\" class=\"wp-image-25974\" srcset=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-rotated.jpg 1440w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-225x300.jpg 225w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-768x1024.jpg 768w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-1152x1536.jpg 1152w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_1-450x600.jpg 450w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"kadence-blocks-gallery-item\"\u003e\n\u003cdiv class=\"kadence-blocks-gallery-item-inner\"\u003e\n\u003cfigure class=\"kb-gallery-figure kb-gallery-item-has-link kadence-blocks-gallery-item-hide-caption\"\u003e\u003ca href=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2.jpg\" class=\"kb-gallery-item-link\" role=\"button\" aria-haspopup=\"dialog\" aria-label=\"Display lightbox image: 2\"\u003e\n\u003cdiv class=\"kb-gal-image-radius\"\u003e\n\u003cdiv class=\"kb-gallery-image-contain kadence-blocks-gallery-intrinsic\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2.jpg\" width=\"1440\" height=\"1920\" alt=\"\" data-full-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2.jpg\" data-light-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2.jpg\" data-id=\"25975\" class=\"wp-image-25975\" srcset=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2.jpg 1440w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2-225x300.jpg 225w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2-768x1024.jpg 768w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2-1152x1536.jpg 1152w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_2-450x600.jpg 450w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"kadence-blocks-gallery-item\"\u003e\n\u003cdiv class=\"kadence-blocks-gallery-item-inner\"\u003e\n\u003cfigure class=\"kb-gallery-figure kb-gallery-item-has-link kadence-blocks-gallery-item-hide-caption\"\u003e\u003ca href=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3.jpg\" class=\"kb-gallery-item-link\" role=\"button\" aria-haspopup=\"dialog\" aria-label=\"Display lightbox image: 3\"\u003e\n\u003cdiv class=\"kb-gal-image-radius\"\u003e\n\u003cdiv class=\"kb-gallery-image-contain kadence-blocks-gallery-intrinsic\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" src=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3.jpg\" width=\"1440\" height=\"1920\" alt=\"\" data-full-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3.jpg\" data-light-image=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3.jpg\" data-id=\"25976\" class=\"wp-image-25976\" srcset=\"https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3.jpg 1440w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3-225x300.jpg 225w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3-768x1024.jpg 768w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3-1152x1536.jpg 1152w, https:\/\/news.csfrace.com\/wp-content\/uploads\/2023\/09\/8258_inst_3-450x600.jpg 450w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003ePerfect drop-in fit in the factory location. Note the mounting pins and bracket on the CSF #8258 are aluminum vs the OE plastic. This offers more stable mounting and durability.\u003c\/p\u003e","brand":"bmwmpower247","offers":[{"title":"One","offer_id":47989395620052,"sku":null,"price":469.99,"currency_code":"USD","in_stock":true},{"title":"Two (Pair)","offer_id":47989395652820,"sku":null,"price":939.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0026\/6718\/4174\/files\/CEBD4F20-A7FE-4852-8A7E-5586030F10B1.jpg?v=1779857768","url":"https:\/\/bmwmpower247.com\/products\/csf-f8x-m3-m4-m2c-auxiliary-radiators-w-rock-guards-sold-individually-fits-left-and-right","provider":"bmwmpower247","version":"1.0","type":"link"}