{"product_id":"exhaust-manifold-header-for-toyota-4runner-pickup-1984-1989-2-2l-2-4l","title":"Exhaust Manifold Header for Toyota 4Runner \u0026 Pickup (1984-1989) 2.2L 2.4L","description":"\u003ch2\u003eOptimize Exhaust Scavenging for Toyota 4Runner \u0026amp; Pickup 2.2L-2.4L Engines\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWho Is This For?\u003c\/strong\u003e This performance header is purpose-built for the Toyota enthusiast maintaining or restoring a classic 22R or 22RE engine. Specifically designed for 5-speed manual owners, it’s the ideal solution for those seeking better throttle response and a more durable alternative to aging factory parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Restrictive Factory Bottleneck:\u003c\/strong\u003e After decades of heat cycles, original cast-iron manifolds often develop hairline cracks or warp, leading to exhaust leaks and lost power. These heavy stock units stifle the 2.4L engine's ability to breathe, especially when climbing hills or navigating off-road trails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Engineering Solution:\u003c\/strong\u003e Crafted from high-grade stainless steel, this 4-1 header design maximizes airflow by accelerating exhaust gas velocity. The CNC-machined 7\/16\" head flanges provide a thick, stable mating surface to prevent future leaks, while the TIG and MIG welded construction ensures structural integrity. With 1.50\" primary tubes and a 2.50\" outlet, this kit facilitates a smoother exit for spent gases, resulting in noticeable gains in mid-range torque.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eThe Comparative Edge\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality Stainless Steel construction offers superior rust resistance compared to OEM cast iron.\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined flanges (7\/16\" head, 3\/8\" outlet) ensure a perfectly flat sealing surface.\u003c\/li\u003e\n\u003cli\u003eFull 4-1 piping architecture improves engine efficiency and provides a deeper exhaust note.\u003c\/li\u003e\n\u003cli\u003eComplete installation package includes downpipe, gaskets, and mounting hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px;\"\u003eFitment\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e1981-1992 Toyota Pickup \u0026amp; 1984-1989 4Runner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px;\"\u003eEngine\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e2.2L (22R) \/ 2.4L (22RE) 4-Cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px;\"\u003eTransmission\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5-Speed Manual Models Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px;\"\u003ePrimary \/ Outlet Size\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e1.50\" Primaries \/ 2.50\" Outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003eTIG\/MIG Welded Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1984-1989 Toyota 4Runner (2.2L \u0026amp; 2.4L 5-Speed Manual)\u003c\/li\u003e\n\u003cli\u003e1981-1992 Toyota Pickup (2.2L \u0026amp; 2.4L 5-Speed Manual)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Performance Promise\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBuy with confidence.\u003c\/strong\u003e Backed by real automotive experts and fast shipping to get your project back on the road or trail.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":47977327263992,"sku":"DS-EWLN92VYK","price":289.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-manifold-header-for-toyota-4runner-pickup-1984-1989-2-2l-2-4l-1.webp?v=1770835425","url":"https:\/\/performancechiptuning.com\/products\/exhaust-manifold-header-for-toyota-4runner-pickup-1984-1989-2-2l-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}