{"product_id":"dorman-674-578-exhaust-manifold","title":"Dorman 674-578 Exhaust Manifold - Rear","description":"\u003ch2\u003eOverview of Dorman 674-578 Exhaust Manifold for Infiniti and Nissan\u003c\/h2\u003e\u003cp\u003eThe Dorman 674-578 exhaust manifold is designed specifically for Infiniti I30 and Nissan Maxima models. Crafted from durable cast iron with a natural finish, this exhaust manifold ensures reliable performance and longevity for your vehicle's exhaust system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from cast iron for strength and heat resistance\u003c\/li\u003e\n\u003cli\u003eNatural color finish with an oval port shape for optimal exhaust flow\u003c\/li\u003e\n\u003cli\u003eIncludes mounting hardware, gasket, studs, nuts, and heat shield\u003c\/li\u003e\n\u003cli\u003eGrade type: Regular, suitable for standard replacement needs\u003c\/li\u003e\n\u003cli\u003eCompatible with Infiniti I30 and Nissan Maxima models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Dorman exhaust manifold (part number 674-578) is engineered to meet OEM specifications for a precise fit and function. The cast iron material provides excellent durability and heat tolerance, essential for managing exhaust gases efficiently. The oval port shape is designed to match the exhaust ports on compatible Infiniti and Nissan engines, ensuring smooth exhaust flow and reducing backpressure. Included in the package are all necessary mounting components: one manifold gasket and flange, three studs, three nuts, and a heat shield to protect surrounding components from excessive heat.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cp\u003eThis exhaust manifold is used to replace worn or damaged manifolds on Infiniti I30 and Nissan Maxima vehicles. It addresses several common issues:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExhaust leaks caused by cracked or warped manifolds\u003c\/li\u003e\n\u003cli\u003eReduced engine performance due to poor exhaust flow\u003c\/li\u003e\n\u003cli\u003eExcessive engine noise from damaged or missing heat shields\u003c\/li\u003e\n\u003cli\u003eFailed emissions tests related to exhaust system leaks\u003c\/li\u003e\n\u003cli\u003eCorrosion or rust damage from prolonged exposure to heat and elements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 674-578 exhaust manifold should be performed by a qualified technician or experienced DIYer. Ensure the engine is cool before beginning work. Use the included gasket and mounting hardware to secure the manifold tightly, preventing exhaust leaks. The heat shield must be installed correctly to protect nearby components from heat damage. Torque all fasteners to manufacturer specifications for optimal sealing and durability.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman exhaust manifolds are manufactured to meet or exceed OEM standards, providing reliable performance and fitment. This part comes with a limited warranty covering defects in materials and workmanship. For specific warranty details, refer to Dorman's official documentation or contact the manufacturer directly.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44054757015733,"sku":"BKKY-674-578","price":142.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_674578_Fro_19eb339e-0750-447b-987b-61956616f706.jpg?v=1775010111","url":"https:\/\/www.partcatalog.com\/products\/dorman-674-578-exhaust-manifold","provider":"PartCatalog","version":"1.0","type":"link"}