{"product_id":"exhaust-header-for-nissan-300zx-1990-1996-3-0l","title":"Exhaust Header for Nissan 300ZX (1990-1996) 3.0L","description":"\u003ch2\u003eHigh-Flow Performance Exhaust Header for 1990-1996 Nissan 300ZX\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The performance exhaust header replaces the restrictive cast-iron factory manifolds on the 1990-1996 Nissan 300ZX to accelerate exhaust scavenging, minimize backpressure, and sharpen throttle response across the powerband.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Nissan 300ZX Exhaust Bottleneck\u003c\/h3\u003e\n\u003cp\u003eThe factory exhaust manifolds on the \u003cstrong\u003eZ32\u003c\/strong\u003e platform rely on dense, cast-iron construction with tight, unequal-length runner profiles. Under aggressive driving, these OEM log-style runners produce severe thermal heat soak, turbulently choke gas velocity, and force exhaust reversion back toward the combustion chambers. Repeated high-temperature duty cycles also subject the factory casting and mounting studs to severe thermal stress, frequently resulting in cracked runners and flange distortion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eFabricated from semi-polished \u003cstrong\u003eT304 stainless steel\u003c\/strong\u003e, this direct-fit header kit upgrades the exhaust path with smooth, mandrel-bent primary tubing designed to equalize exhaust pulse timing. The precision-welded flanges maintain a flat, leak-free mating surface against the cylinder heads, reducing the risk of gasket blowout. By streamlining flow velocity and decreasing pumping losses, this assembly delivers significant flow improvements over the restrictive OEM setup without compromising underhood packaging.\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; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1990-1996 Nissan 300ZX\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eVG30DE\u003c\/strong\u003e \/ \u003cstrong\u003eZ32\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e222 hp \/ 198 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A (Aftermarket Replacement for MPN SPT-EHD1226)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1990-1996 Nissan 300ZX 3.0L Naturally Aspirated (Z32 Chassis, VG30DE Engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the Z32 300ZX?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1990-1996 Nissan 300ZX equipped with the \u003cstrong\u003eVG30DE\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this clear the factory steering linkage and chassis rails?\u003c\/strong\u003e\u003cbr\u003e Yes, the primary tube bends are routed specifically to clear the \u003cstrong\u003eZ32\u003c\/strong\u003e chassis crossmember and steering column assembly.\u003c\/p\u003e\n\n\u003ch3\u003eThe Nissan JDM Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-revving naturally aspirated Japanese performance, this stainless header kit sharpens the acoustic pitch of the \u003cstrong\u003eVG30DE\u003c\/strong\u003e while unlocking the high-RPM breathing capacity that the factory casting inherently suppresses.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50606852047096,"sku":"DS-E7E8XXGMU","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-header-for-nissan-300zx-1990-1996-3-0l-1.jpg?v=1790090781","url":"https:\/\/performancechiptuning.com\/products\/exhaust-header-for-nissan-300zx-1990-1996-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}