{"product_id":"csf-audi-b5-a4-1-8t-high-performance-radiator","title":"CSF Audi B5 A4 1.8T High-Performance Radiator","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe Audi\/VW 1.8L 20v turbo inline-4 is a genuinely great motor, proven stout when making more power while keeping the B5 A4's weight low enough to stay fairly light and nimble. A few bolt-ons, new turbos, and a tune can quickly get you to double the original horsepower of the motor, but those power gains come at the cost of a lot of extra heat. CSF developed this High-Performance All-Aluminum Radiator specifically for enthusiasts making more power and pushing their Audi to the limit, whether that's autocross, drag racing, track driving, or simply hitting the backroads with vigour.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe 2-row, 42mm core uses a dual-pass configuration built around CSF's exclusive B-Tube technology. Rather than a regular oval \"O\"-shaped tube, a specially engineered \"B\"-shaped tube is carefully formed and brazed over the seam, increasing heat transfer surface area by approximately 15% over regular tubes while allowing for thinner, lighter aluminium construction that's genuinely stronger than a normal welded design, delivering true dual liquid laminar flow. The larger core doesn't just improve heat dissipation, it also increases fluid capacity significantly over the factory unit, and more cooling tubes mean more surface area for the coolant's heat to dissipate from. Super-efficient multi-louvered fins maximise airflow through the core, and 100% all-aluminium, TIG-welded construction increases overall strength considerably over the factory design. CNC-machined, welded OE-style brackets ensure a genuine drop-in fit requiring no modifications to install.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eWorks with:\u003c\/strong\u003e OEM mounting points and hose connections. True drop-in fit.\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 Radiator\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\"\u003eDual-pass, 2-row, 42mm core with CSF's exclusive B-Tube technology\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eApproximately 15% more heat transfer surface area than regular tubes, genuine dual liquid laminar flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSignificantly increased fluid capacity over the OEM unit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e100% all-aluminium, TIG-welded construction for genuine long-term strength\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCNC-machined, welded OE-style brackets for a precise, durable fit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTrue drop-in fit, no modifications required\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\"\u003eAudi A4 (B5, 1996-2001, 1.8T)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":54445115998541,"sku":"CSF-7204","price":705.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4808\/2253\/files\/csf-audi-b5-a4-1-8t-high-performance-radiator.webp?v=1785681041","url":"https:\/\/i6tuning.com\/products\/csf-audi-b5-a4-1-8t-high-performance-radiator","provider":"i6 Tuning","version":"1.0","type":"link"}