{"product_id":"rudys-replacement-exhaust-manifold-kit-for-99-03-7-3-powerstroke","title":"Rudy's Replacement Exhaust Manifold Kit For 99-03 7.3 Powerstroke","description":"\u003csection class=\"cmp-product-section cmp-product-description open animate--fade-in\" data-scroll=\"\"\u003e\n\u003cdiv class=\"cmp-product-section__inner\"\u003e\n\u003cdiv class=\"cmp-product-description__content\"\u003e\n\u003cp\u003eRestore lost performance and eliminate exhaust leaks with the MFM Exhaust Manifold Set for 1999.5–2003 Ford 7.3L Powerstroke trucks. Designed as direct replacements for factory manifolds known to crack or warp from repeated heat cycles, these heavy-duty cast iron manifolds deliver superior durability and long-term reliability. Whether towing, hauling, or daily driving, the MFM manifolds help maintain strong exhaust flow and proper turbo efficiency.\u003c\/p\u003e\n\u003cp\u003eEach manifold is precision-machined to ensure perfect sealing and smooth installation. MFM reinforces vulnerable OEM failure points, providing improved strength where the factory castings typically fail. With included gaskets and hardware, this kit is ready for straightforward installation and is ideal for bringing high-mileage 7.3L Powerstroke engines back to proper performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty cast iron construction resists warping and cracking\u003c\/li\u003e\n\u003cli\u003eRedesigned structure reinforces common OEM weak failure areas\u003c\/li\u003e\n\u003cli\u003eLeak-resistant sealing surfaces ensure long-term exhaust integrity\u003c\/li\u003e\n\u003cli\u003ePrecision-machined flanges deliver accurate fit and alignment\u003c\/li\u003e\n\u003cli\u003eHeat-shield included where applicable for component protection\u003c\/li\u003e\n\u003cli\u003eDirect OEM-style replacement requires no modifications to install\u003c\/li\u003e\n\u003cli\u003eIdeal solution for replacing cracked or leaking stock manifolds\u003c\/li\u003e\n\u003cli\u003eBacked by MFM 1-year warranty for dependable service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Heavy-Duty Cast Iron\u003c\/li\u003e\n\u003cli\u003eDesign: Direct OEM Replacement\u003c\/li\u003e\n\u003cli\u003eFlanges: Precision-Machined for Proper Sealing\u003c\/li\u003e\n\u003cli\u003eDurability: Reinforced High-Stress Areas\u003c\/li\u003e\n\u003cli\u003eHeat Shield: Included Where Applicable\u003c\/li\u003e\n\u003cli\u003eGaskets: Multi-Layer Steel Construction\u003c\/li\u003e\n\u003cli\u003eHardware: High-Strength Studs and Nuts\u003c\/li\u003e\n\u003cli\u003eFinish: Heat-Resistant Black Coating\u003c\/li\u003e\n\u003cli\u003eReplaces OEM P\/N: F81Z9431AA \/ F81Z9430AA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Exhaust manifolds\u003c\/li\u003e\n\u003cli\u003e(2) Gaskets (manifold to cylinder head)\u003c\/li\u003e\n\u003cli\u003e(4) Studs (manifold to exhaust pipe flange)\u003c\/li\u003e\n\u003cli\u003e(4) Nuts (manifold to exhaust pipe flange)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1999.5-2003 Ford F-250 7.3L Powerstroke\u003c\/li\u003e\n\u003cli\u003e1999.5-2003 Ford F-350 7.3L Powerstroke\u003c\/li\u003e\n\u003cli\u003e1999.5-2003 Ford F-450 7.3L Powerstroke\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1-Year Warranty\u003c\/li\u003e\n\u003cli\u003eDirect Replacement\u003c\/li\u003e\n\u003cli\u003eInterchange P\/N: F81Z9431AA, F81Z 9431 AA, F81Z9430AA, F81Z 9430 AA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Rudy's Performance Parts","offers":[{"title":"Default Title","offer_id":43095825776849,"sku":"DP0252","price":234.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/6716\/6417\/files\/F198715818.jpg?v=1778896706","url":"https:\/\/daijanaespedicurenails.myshopify.com\/products\/rudys-replacement-exhaust-manifold-kit-for-99-03-7-3-powerstroke","provider":"Daijanae beautiful pedicure","version":"1.0","type":"link"}