{"product_id":"dinan-high-capacity-oil-cooler-system-e90-335i-2009-cars-with-factory-oil-cooler","title":"Dinan High Capacity Engine Oil Cooler Upgrade Kit for BMW E90 335i \/ 335i xDrive AWD (335xi) N54 3 Series Sedan\/Saloon 2009–2010 – Performance Oil Radiator Heat Exchanger for OEM Oil Cooler Cars, Track Day \u0026 Tuned Use","description":"\u003cdiv class=\"product-description\"\u003e\n  \n  \u003ch2\u003eSerious oil temperature control for N54-powered E90 3 Series\u003c\/h2\u003e\n  \n  \u003cp\u003eUnlock dependable cooling performance for your twin turbo 3 Series with the Dinan High Capacity Oil Cooler System. Built for the 2009 to 2010 BMW E90 335i and 335i xDrive that left the factory with an OEM oil cooler, this upgraded heat exchanger delivers the extra thermal headroom your N54 needs on fast road drives and track days.\u003c\/p\u003e\n  \n  \u003cp\u003eIf your 3 Series is tuned, driven hard or regularly sees spirited B-road blasts, you know how quickly oil temps can climb. This direct-fit oil radiator upgrade stabilises temperatures, helps curb heat soak and reduces the chance of reduced power safe mode, giving you consistent performance, lap after lap and mile after mile.\u003c\/p\u003e\n  \n  \u003ch3\u003eWhat you will notice\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eLower, more stable oil temps during demanding use for improved engine protection\u003c\/li\u003e\n    \u003cli\u003eGreater consistency on repeated pulls and during extended sessions\u003c\/li\u003e\n    \u003cli\u003eA direct-fit, purpose-built solution for factory oil cooler cars that looks OE and works brilliantly\u003c\/li\u003e\n    \u003cli\u003eConfidence to enjoy your tuning, intake and exhaust upgrades without the thermal compromises\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eProven in our workshop\u003c\/h3\u003e\n  \u003cp\u003eWe have fitted this Dinan system on multiple customer builds and our own cars. Feedback has been consistently positive, with owners reporting cooler oil temps, stronger repeatability and far fewer temperature-related interruptions on road and at track days. It is one of the most sensible reliability upgrades for an N54-powered 335i.\u003c\/p\u003e\n  \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW 3 Series E90 335i saloon 2009 to 2010\u003c\/li\u003e\n    \u003cli\u003eBMW 3 Series E90 335i xDrive AWD 2009 to 2010\u003c\/li\u003e\n    \u003cli\u003eFor vehicles originally equipped with the factory engine oil cooler\u003c\/li\u003e\n    \u003cli\u003eEngine: N54 twin turbo straight six\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eWhy it matters on an N54\u003c\/h3\u003e\n  \u003cp\u003eThe N54 is renowned for strong tuning potential but also for heat. More boost and more load mean more heat in the lubrication system. Upgrading the oil heat exchanger increases cooling capacity, helping safeguard bearings and turbochargers while keeping performance repeatable. It is a smart preventative step for any enthusiast who wants reliable power.\u003c\/p\u003e\n  \n  \u003ch3\u003eInstallation\u003c\/h3\u003e\n  \u003cp\u003eProfessional fitting recommended. MJ Modifications offers in-house installation in Warwickshire. Request a quote or book workshop time at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n  \n  \u003ch3\u003eBuy with confidence from MJ Modifications\u003c\/h3\u003e\n  \u003cp\u003eWe specialise in performance cooling and N54 upgrades, with hands-on experience across the E90 platform. Order today for fast dispatch and expert support before and after purchase.\u003c\/p\u003e\n  \n  \u003ch3\u003eSearch-friendly terms\u003c\/h3\u003e\n  \u003cp\u003eBMW E90 3 Series oil cooler upgrade, 335i xDrive oil cooling, N54 oil temperature solution, upgraded oil heat exchanger BMW, engine oil radiator kit E90, track day oil cooling 335i, cooling system upgrade N54, temperature stabilisation BMW 335i, performance oil cooler 2009 2010, AWD 335xi oil cooler, E90 saloon oil cooler kit, prevent power reduction BMW, tuned N54 cooling, reliability mod 335i.\u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"Performance M","offers":[{"title":"Default Title","offer_id":55975111229826,"sku":"hihtgin8tw","price":2270.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/D570-0902__59483.1535040874.jpg?v=1763320595","url":"https:\/\/mjmodifications.co.uk\/products\/dinan-high-capacity-oil-cooler-system-e90-335i-2009-cars-with-factory-oil-cooler","provider":"MJ Modifications","version":"1.0","type":"link"}