{"product_id":"chase-bays-99-06-bmw-3-series-e46-w-m5x-s5x-oil-cooler-kit","title":"Chase Bays 99-06 BMW 3-Series E46 (w\/M5X\/S5X) Oil Cooler Kit","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eCB-E46-S5XOILCOOL\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 810156698903\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eChase Bays 99-06 BMW 3-Series E46 (w\/M5X\/S5X) Oil Cooler Kit\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eChase Bays Oil Cooler Kit provides critical engine oil cooling for 1999-2006 BMW 3-Series E46 chassis equipped with M5X (M54) or S5X (S54) engine swaps. This bolt-on system reduces oil temperatures by 30-50°F during track sessions or aggressive street driving to maintain viscosity, protect bearings, and sustain power. Premium components ensure direct fit and dependable operation in any high-performance E46 build, including M3 conversions.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Row Stacked Plate Oil Cooler:\u003c\/strong\u003e 11\" wide x 7.75\" tall x 1.75\" thick core with 5\/8-18 O-ring ports delivers massive cooling capacity to drop oil temps 30-50°F under heavy load for sustained engine performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostatic Sandwich Plate:\u003c\/strong\u003e 180°F bypass plate with -10AN ports maintains optimal oil temperature on cold starts before directing flow to the cooler for consistent protection and flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25ft -10AN Stainless Braided PTFE Hose:\u003c\/strong\u003e Abrasion-resistant lines offer flexible routing from engine to cooler with unrestricted full flow and zero leaks for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet 6061 Aluminum Fittings:\u003c\/strong\u003e Three -10AN 90° swivels and one straight swivel in black anodized finish resist corrosion and allow precise installation adjustments without tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom E46 Mounting Bracket:\u003c\/strong\u003e Laser-cut 1\/8\" steel powdercoated bracket mounts cooler to OEM radiator support holes ahead of radiator for maximum airflow and compatibility with AC condenser or intercoolers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eKit includes all fittings, hardware, and zip ties for complete installation on M5X or S5X swapped E46 chassis.\u003c\/li\u003e\n\u003cli\u003eRequires 1-2 quarts additional oil capacity. check levels after installation and initial runs.\u003c\/li\u003e\n\u003cli\u003eSpecial order item with 3-7 business day lead time direct from Chase Bays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eRemove stock oil cooler lines at filter housing. sandwich plate installs between housing and filter with provided O-rings.\u003c\/li\u003e\n\u003cli\u003eMounts to OEM radiator support holes. clears AC condenser, intercooler setups, and common E46 modifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e3 Series\u003c\/td\u003e\n\u003ctd\u003eE46 (w\/M5X\/S5X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2003\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e323i\u003c\/td\u003e\n\u003ctd\u003eE46 Chassis w\/M5X\/S5X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2003\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e325i\u003c\/td\u003e\n\u003ctd\u003eE46 Chassis w\/M5X\/S5X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2003\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e328i\u003c\/td\u003e\n\u003ctd\u003eE46 Chassis w\/M5X\/S5X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2006\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e330i\u003c\/td\u003e\n\u003ctd\u003eE46 Chassis w\/M5X\/S5X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2006\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003eE46 Chassis w\/S5X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Chase Bays?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUSA-made components proven in grassroots racing and daily street E46 builds.\u003c\/li\u003e\n\u003cli\u003eCNC-machined billet aluminum and stainless steel construction for enduring strength.\u003c\/li\u003e\n\u003cli\u003eEngineered for bolt-on fit on BMW M54 and S54 swaps without cutting or fabrication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit a stock E46 M3 with S54 engine?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, bolts directly to any 1999-2006 E46 chassis with S54 or M54 engine including stock M3 or swaps. perfect for high-horsepower setups needing reliable cooling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What materials are used in the kit?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e 6061-T6 billet aluminum fittings and sandwich plate, 304 stainless braided hose over PTFE core, and powdercoated steel mounting bracket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and install time?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Lifetime warranty on fittings against leaks. Expect 4-6 hours for DIY with basic tools or 2 hours in a professional shop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e Special order - ships 3-7 business days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Foam-protected box 24in L x 14in W x 8in H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9.8 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Chase Bays","offers":[{"title":"Default Title","offer_id":43518245437519,"sku":"CHBCB-E46-S5XOILCOOL","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/chase-bays-99-06-bmw-3-series-e46-wm5xs5x-oil-cooler-kit-chase-bays.jpg?v=1767410786","url":"https:\/\/www.blackopsautoworks.com\/products\/chase-bays-99-06-bmw-3-series-e46-w-m5x-s5x-oil-cooler-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}