{"product_id":"exhaust-headers-for-nissan-frontier-1999-2004-3-3l","title":"Exhaust Headers for Nissan Frontier (1999-2004) 3.3L","description":"\u003ch2\u003eHigh-Flow Exhaust Headers for 1999-2004 Nissan Frontier\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces the restrictive cast-iron factory exhaust manifolds with tubular stainless steel headers to improve exhaust scavenging and lower cylinder head temperatures.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Frontier D22 Bottleneck\u003c\/h3\u003e\n  \u003cp\u003eThe OEM cast-iron manifolds on the VG33E engine are notorious for poor flow characteristics and extreme heat retention. From the factory, these cast manifolds feature abrupt internal angles and rough casting flashes that disrupt exhaust gas velocity, creating severe backpressure. During thermal cycling, especially under heavy towing or off-road conditions, these heavy iron manifolds trap heat against the cylinder heads. This increases the risk of localized heat soak, degraded gasket integrity, and stress cracks in the casting. This factory exhaust bottleneck severely throttles volumetric efficiency, suppressing the naturally aspirated potential of the 3.3L V6 and limiting low-end torque.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThese upgraded exhaust headers are engineered to maximize exhaust gas scavenging by utilizing optimized tubular runners with a 1.50-inch inlet and a 2.0-inch outlet. Constructed from premium T-304 stainless steel, they provide superior resistance to corrosion and thermal degradation. Mandrel-bent tubing ensures a smooth, uninterrupted flow path, drastically reducing backpressure while accelerating exhaust velocity. This allows the VG33E to expel exhaust gasses with minimal parasitic pumping loss. The result is sharper throttle response, lowered engine bay temperatures, and enhanced mid-range torque delivery. The complete kit includes both left and right headers along with required hardware and gaskets for immediate installation.\u003c\/p\u003e\n  \n\n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1999-2004 Nissan Frontier\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVG33E \/ D22\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e170 hp \/ 200 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1999 Nissan Frontier 3.3L V6\u003c\/li\u003e\n    \u003cli\u003e2000 Nissan Frontier 3.3L V6\u003c\/li\u003e\n    \u003cli\u003e2001 Nissan Frontier 3.3L V6\u003c\/li\u003e\n    \u003cli\u003e2002 Nissan Frontier 3.3L V6\u003c\/li\u003e\n    \u003cli\u003e2003 Nissan Frontier 3.3L V6\u003c\/li\u003e\n    \u003cli\u003e2004 Nissan Frontier 3.3L V6\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Nissan D22 Caliber\u003c\/h3\u003e\n  \u003cp\u003eBuilt for the rugged demands of towing, hauling, and off-road trail navigation, improving your D22's exhaust flow ensures the VG33E maintains optimal power and reliability under prolonged heavy loads.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50081456587000,"sku":"DS-ECCLFM7B6","price":209.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-headers-for-nissan-xterra-2000-2004-3-3l-1_aefef574-6d0d-413d-894a-92d57a294a0e.webp?v=1785431814","url":"https:\/\/performancechiptuning.com\/fr\/products\/exhaust-headers-for-nissan-frontier-1999-2004-3-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}