{"product_id":"csf-rad-25275217-v1","title":"BMW E46 Radiator 99-06 320\/323\/325\/328\/330 + Z4 03-05","description":"\u003cp\u003eCSF brings over 5 decades of radiator manufacturing expertise to the E46 3-Series and Z4, delivering a high-performance all-aluminum radiator engineered for both street and track use. This radiator is essential for high-horsepower builds and motorsports applications requiring superior cooling performance.\u003c\/p\u003e\u003cp\u003eFeaturing a 2-Row 42mm core with CSF's exclusive B-Tube Technology, this radiator achieves approximately 15% greater heat transfer surface area compared to conventional oval-tube designs. The innovative B-shaped tubes are seam-brazed for strength while using thinner, lighter aluminum material, creating dual liquid laminar flow within the same space envelope. Ultra-efficient multi-louvered fins with 6.5mm fin height are meticulously aligned and wind-tunnel validated for maximum airflow and heat rejection.\u003c\/p\u003e\u003cbr\u003eKey Features:\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExclusive B-Tube Technology with seam-brazed construction\u003c\/li\u003e\n\u003cli\u003e2-Row 42mm dual core with 15% greater surface area efficiency\u003c\/li\u003e\n\u003cli\u003eUltra-efficient multi-louvered fins precisely engineered for maximum airflow\u003c\/li\u003e\n\u003cli\u003eCNC machined quick-connect inlet\/outlet connections\u003c\/li\u003e\n\u003cli\u003eCNC machined brackets and fittings for exceptional durability\u003c\/li\u003e\n\u003cli\u003eAll-aluminum race-style drain plug with satin finish\u003c\/li\u003e\n\u003cli\u003eTrue drop-in fit requiring zero modifications\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM hoses, AC condenser, brackets and fan shroud\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003eIncludes:\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance all-aluminum radiator assembly\u003c\/li\u003e\n\u003cli\u003eCNC machined mounting brackets\u003c\/li\u003e\n\u003cli\u003eQuick-connect inlet\/outlet connections\u003c\/li\u003e\n\u003cli\u003eRace-style aluminum drain plug\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003eMaximum cooling performance. Drop-in compatibility. Built for the E46 and Z4.\u003cbr\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":50734705082674,"sku":"CSF-RAD-25275217-V1","price":645.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/4058\/4242\/files\/3055.jpg?v=1765895465","url":"https:\/\/gp-portal.eu\/products\/csf-rad-25275217-v1","provider":"GP Portal","version":"1.0","type":"link"}