{"product_id":"koyo-hh-48mm-racing-radiator-bmw-e46-m3-2001-2006","title":"Koyo HH 48MM Racing Radiator - BMW E46 M3 (2001-2006)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eHH422675 - Koyo HH 48MM Racing Radiator - BMW E46 M3 (2001-2006)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUpgrade the cooling performance of your \u003cstrong\u003e2001–2006 BMW E46 M3\u003c\/strong\u003e with the Koyorad HH Series All-Aluminum Performance Radiator. Designed as a direct replacement for the factory plastic\/aluminum radiator, this high-performance cooling solution delivers increased coolant capacity, improved airflow, and more efficient coolant circulation while maintaining an OEM-style fit.\u003c\/p\u003e\n\u003cp\u003eAt the heart of the radiator is Koyorad’s \u003cstrong\u003eHH Series high-density, dual-row 48mm aluminum core\u003c\/strong\u003e, engineered to provide significantly greater cooling capability than the factory radiator. Whether your E46 M3 is a street car, track build, or modified performance setup, the increased cooling capacity helps keep temperatures under control when the S54 is being pushed hard.\u003c\/p\u003e\n\u003cp\u003ePrecision-engineered specifically for the E46 M3 chassis, the radiator installs using the factory mounting locations and is designed to work with the OEM fan shroud for a straightforward installation. Unlike universal-fit alternatives, the tanks and core are purpose-built for this application to provide proper fitment without unnecessary modification.\u003c\/p\u003e\n\u003cp\u003eFinished in polished aluminum and constructed with Koyorad’s high-quality welding and brazing processes, this radiator combines performance, durability, and a clean appearance worthy of the E46 M3.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFits \u003cstrong\u003e2001–2006 BMW E46 M3\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDirect replacement for the factory OEM radiator\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHH Series high-density dual-row 48mm core\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncreased coolant capacity for improved cooling performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides approximately \u003cstrong\u003e20–30% greater cooling capacity\u003c\/strong\u003e than standard radiators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for high-revving and high-performance engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for street, track, and modified applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for turbocharged, supercharged, and nitrous-equipped vehicles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConstructed from high-quality aluminum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrecision welded aluminum tanks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNOCOLOK-brazed core construction with no epoxy\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eApplication-specific core and tank design—no universal-fit components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with the factory fan shroud\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePolished aluminum finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEngineered for OEM-style fitment and straightforward installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M3 (E46)\u003c\/strong\u003e\u003cbr\u003e2001–2006\u003c\/p\u003e\n\u003cp\u003eA great cooling upgrade for E46 M3 owners looking to replace the aging factory radiator while adding increased cooling capacity, durability, and performance.\u003c\/p\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":53861239128371,"sku":null,"price":575.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0256\/5855\/6497\/files\/HH422675_640x640_30c5dd90-2c73-4025-b640-072ffbaf10d8.jpg?v=1786894513","url":"https:\/\/www.circuitspecr.com\/products\/koyo-hh-48mm-racing-radiator-bmw-e46-m3-2001-2006","provider":"Circuit Spec R","version":"1.0","type":"link"}