{"product_id":"csf-bmw-m3-e46-dual-pass-race-spec-oil-cooler","title":"CSF BMW M3 E46 Dual Pass Race Spec Oil Cooler","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe E46 M3 comes with a factory oil cooler, but it simply wasn't designed for genuine high-performance driving - a few minutes on track quickly reveals how inadequate the stock unit really is. Dangerously high oil temperatures accelerate oil breakdown and put the S54 at real risk of internal damage, which is exactly the problem this cooler was engineered to solve.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe new core is over \u003cstrong\u003etwice the size\u003c\/strong\u003e of the factory unit 243 cubic inches of volume versus the OEM's 103 cubic inches - replacing the factory's single-pass design and plastic shroud with a unique top\/bottom dual-pass configuration for genuinely maximised surface area and flow. A turbulated, heavy-duty bar\/plate design delivers 8 rows of maximum cooling with a high-density, multi-louvered fin pitch, while fully TIG-welded extruded end tanks replace the OEM's weaker mechanically-jointed and tack-welded construction for real reliability and durability gains. The tapered shape fits precisely within the contour of the OEM bumper, so there's no conflict with aftermarket splitter attachments either.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eWhy Choose This Oil Cooler\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOver 2x the volume of the factory unit\u003c\/strong\u003e - 243 cubic inches vs the OEM's 103 cubic inches\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTop\/bottom dual-pass design\u003c\/strong\u003e - maximised surface area and flow versus the factory single-pass layout\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTurbulated heavy-duty bar\/plate construction\u003c\/strong\u003e - 8 rows of maximum cooling with high-density fin pitch\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFully TIG-welded extruded end tanks\u003c\/strong\u003e - genuine reliability upgrade over the OEM's tack-welded design\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFits the OEM bumper contour precisely\u003c\/strong\u003e - no conflict with aftermarket splitters\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrack proven\u003c\/strong\u003e - developed specifically to address the factory unit's known shortcomings under hard use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eCompatibility\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW E46 M3 (2000-2006, S54)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":54426298745165,"sku":"CSF-8032","price":729.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4808\/2253\/files\/csf-bmw-m3-e46-dual-pass-race-spec-oil-cooler.webp?v=1785397963","url":"https:\/\/i6tuning.com\/products\/csf-bmw-m3-e46-dual-pass-race-spec-oil-cooler","provider":"Inline6 Tuning","version":"1.0","type":"link"}