{"product_id":"oil-cooler-kit-for-subaru-impreza-wrx-wrx-sti-2001-2005-2-0l-2-5l","title":"Oil Cooler Kit for Subaru Impreza WRX, WRX STI (2001-2005) 2.0L, 2.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit High-Efficiency Oil Cooler Kit for 2001-2005 Subaru Impreza WRX \/ WRX STI (GD)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The oil cooler kit supplements the factory lubrication circuit on 2001-2005 Impreza WRX and WRX STI models to reduce engine oil temperatures by over 20°F and increase oil capacity by 0.5 quarts under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Subaru Impreza, WRX, WRX STI Thermal Limitation\u003c\/h3\u003e\n\u003cp\u003eThe factory liquid-to-liquid oil cooler donut on the \u003cstrong\u003eEJ205\u003c\/strong\u003e and \u003cstrong\u003eEJ257\u003c\/strong\u003e platforms relies entirely on engine coolant temperatures. During sustained boost, track sessions, or aggressive driving, coolant heat-soak rapidly transfers into the oiling system. Excessive bulk oil temperatures cause viscosity breakdown, leading to accelerated rod bearing wear, journal scoring, and turbocharger oil coking. Without external air-to-oil heat dissipation, oil shear and pressure drop threaten internal engine longevity under extreme thermal duty cycles.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis kit incorporates an efficient aluminum bar-and-plate external cooler core designed for superior thermal transfer and pressure tolerance against road debris. Routing through a direct-fit sandwich plate with an \u003cstrong\u003eM20\u003c\/strong\u003e banjo fitting, oil circulates via high-pressure stainless braided -10AN fluid lines (1.1 m and 1.4 m lengths) that resist abrasion, bursting, and high-heat fatigue. By adding 0.5 quarts of total lubricant volume, the system maintains stable oil viscosity, cushions journal bearings, and reduces oil breakdown under hard cornering and sustained wide-open throttle.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum bar-and-plate oil cooler core\u003c\/li\u003e\n  \u003cli\u003e1.1 m stainless braided -10AN oil hose\u003c\/li\u003e\n  \u003cli\u003e1.4 m stainless braided -10AN oil hose\u003c\/li\u003e\n  \u003cli\u003eOil filter sandwich plate\u003c\/li\u003e\n  \u003cli\u003eM20 banjo fitting\u003c\/li\u003e\n  \u003cli\u003eVehicle-specific mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2001-2005 Subaru Impreza WRX, WRX STI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEJ205, EJ255, EJ257 \/ GD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e227-300 hp \/ 217-300 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e01EGG019DSL\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2001-2005 Subaru Impreza WRX 2.0L Turbo (EJ205)\u003c\/li\u003e\n  \u003cli\u003e2004-2005 Subaru Impreza WRX STI 2.5L Turbo (EJ257)\u003c\/li\u003e\n  \u003cli\u003e2004-2005 Subaru Impreza WRX 2.5L Turbo (EJ255)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GD Impreza, WRX, WRX STI?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2001-2005 Subaru Impreza WRX and STI equipped with the \u003cstrong\u003eEJ205\u003c\/strong\u003e, \u003cstrong\u003eEJ255\u003c\/strong\u003e, and \u003cstrong\u003eEJ257\u003c\/strong\u003e engines. \u003cstrong\u003eDoes not fit vehicles equipped with aftermarket front-mount intercoolers (FMIC), and requires trimming the factory exhaust heat shield for line clearance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eWhat are the installation torque specifications for the oil line fittings?\u003c\/h4\u003e\n\u003cp\u003eTorque all -10AN and banjo fittings between 15 and 25 lb-ft, never exceeding a maximum torque limit of 35 lb-ft to prevent thread distortion or seal failure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Subaru Performance Standard\u003c\/h3\u003e\n\u003cp\u003eEJ-series boxer engines demand precise lubrication management to reliably endure high boost and lateral G-forces on track. Adding an external bar-and-plate cooler stabilizes fluid shear characteristics, protecting sensitive rod bearings and turbo journals during hard competition driving.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67907758260472,"sku":"DS-EJXB4MJUU","price":229.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oil-cooler-kit-for-subaru-impreza-wrx-wrx-sti-2001-2005-2-0l-2-5l-1.jpg?v=1793379753","url":"https:\/\/performancechiptuning.com\/products\/oil-cooler-kit-for-subaru-impreza-wrx-wrx-sti-2001-2005-2-0l-2-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}