{"product_id":"exhaust-header-manifold-for-toyota-4runner-pickup-1988-1995-3-0l","title":"Exhaust Header Manifold for Toyota 4Runner \u0026 Pickup (1988-1995) 3.0L","description":"\u003ch2\u003eHigh-Flow Stainless Steel Exhaust Header Manifold for 1988-1995 Toyota 4Runner, Pickup\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces the restrictive factory cast iron exhaust manifolds and crossover pipe with a 6-2-1 long-tube stainless steel header system to efficiently scavenge exhaust gasses, reduce under-hood heat, and increase engine volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock 3VZ-E Manifold Bottleneck\u003c\/h3\u003e\n\u003cp\u003eThe factory 3.0L 3VZ-E engine is notoriously plagued by restrictive cast-iron exhaust manifolds and a poorly routed crossover pipe that wraps behind the engine block. This OEM configuration creates severe exhaust turbulence and excessive backpressure, leading to localized heat accumulation. This \"heat soak\" effect not only chokes off top-end horsepower and low-end torque but is a primary contributor to premature head gasket failure on the passenger side cylinder bank—a well-documented flaw of the 3VZ-E architecture. Escaping exhaust pulses collide rather than scavenge, strangling the engine's natural airflow dynamics.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis full-length 6-2-1 header system mitigates factory crossover pipe thermal issues by utilizing computerized mandrel-bent stainless tubing for streamlined exhaust flow. Featuring 1-5\/8\" OD primaries stepping into a 2-1\/4\" OD collector, the geometry is optimized to accelerate exhaust gas velocity. By pairing individual exhaust pulses efficiently, the 6-2-1 architecture creates a vacuum effect that actively pulls spent gases out of the combustion chamber. Precision CNC-machined flanges and TIG-welded construction ensure a warp-resistant, leak-free seal against the cylinder head under extreme thermal cycling. The result is a drop in cylinder head temperatures and an immediate, verifiable gain of 10-15 horsepower and torque, restoring critical pulling power.\u003c\/p\u003e\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;\"\u003e1988-1995 Toyota 4Runner, Pickup\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;\"\u003e3VZ-E \/ N130, N90\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;\"\u003e150 hp \/ 180 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\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1988-1995 Toyota 4Runner 3.0L V6\u003c\/li\u003e\n  \u003cli\u003e1988-1995 Toyota Pickup 3.0L V6\u003c\/li\u003e\n  \u003cli\u003eFITS 3.0L V6 MODELS ONLY\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Toyota Overlanding Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to withstand the rigors of heavy payload hauling and demanding 4x4 trails, these headers provide the critical thermal management and rugged durability required for aging Toyota truck platforms.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48959529779448,"sku":"DS-EMH50FXTH","price":319.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-header-manifold-for-toyota-4runner-pickup-1988-1995-3-0l-1.webp?v=1781582684","url":"https:\/\/performancechiptuning.com\/products\/exhaust-header-manifold-for-toyota-4runner-pickup-1988-1995-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}