{"product_id":"advance-headers-holden-4-cylinder-astra-lb-84-85-a22","title":"Advance Headers | Mild Steel Exhaust Extractors | Nissan Pulsar N10 N12 Prairie Holden Astra 1.5L | A22","description":"\u003ch2\u003eAdvance Headers High-Performance Mild Steel Exhaust Extractors for Nissan E13 \u0026amp; E15 FWD Engines\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe Advance Headers Performance Exhaust Extractors (A22) are precision-engineered for classic front-wheel-drive Nissan and Holden platforms powered by the highly reliable 1.3L E13 and 1.5L E15 SOHC 4-cylinder engine families. Covering the Nissan Pulsar (N10 \u0026amp; N12 series), the early Nissan Prairie, and the Holden Astra LB series, this heavy-duty tubular header upgrade replaces your highly restrictive factory cast-iron manifold to maximize exhaust scavenging velocity, lower backpressure, and improve engine response.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"feature-block\"\u003e\n\u003cdiv class=\"feature-content pb-6\"\u003e\n\u003ch3 style=\"color: #e60000; font-weight: bold;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePRODUCT CONTENTS:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Heavy-Duty Mild Steel Performance Exhaust Extractor Header Assembly (Standard Finish)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTuned mandrel-bent primary piping pathways deliver a uniform internal diameter to promote smooth exhaust gas scavenging and optimized cylinder breathing\u003c\/li\u003e\n\u003cli\u003eSubstantially reduces power-robbing backpressure, providing noticeability crisper throttle response and mid-range acceleration curves\u003c\/li\u003e\n\u003cli\u003eHeavy-duty mild steel construction structurally engineered to handle severe daily commuting heat cycles and thermal expansion safely\u003c\/li\u003e\n\u003cli\u003eThick, precision laser-cut cylinder head flanges maintain flush mating boundaries to guard permanently against face distortion and exhaust gas leaks\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for Front-Wheel Drive (FWD) layouts to navigate transaxle mounts and under-hood clearance boundaries cleanly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"specs\"\u003e\n\u003cul class=\"flex flex-col space-y-2 text-xs\"\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003eBrand:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003eAdvance Headers\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003ePart Number:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003eA22\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003eMaterial:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003eMild Steel (Standard Finish)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003eEngine Suitability:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003eNissan 1.3L E13 \u0026amp; 1.5L E15 SOHC Inline-4 Petrol Engines Only\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003eDrivetrain Profile:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003eFWD (Front-Wheel Drive) Only\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003eComponent Type:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003ePerformance Exhaust Extractors \/ Headers\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003eEstimated Fitting Time:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003eHolden Astra: 1 Hour | Nissan Pulsar \/ Prairie: 1.5 Hours\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text-gray-500 font-semibold mr-1\"\u003eWelding Required:\u003c\/span\u003e \u003cspan class=\"text-gray-700\"\u003eNo (Direct Bolt-On to Cylinder Head)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Crucial Model Variant \u0026amp; Engine Fitment Note:\u003c\/strong\u003e\u003cbr\u003eThis product (Part No. \u003cstrong\u003eA22\u003c\/strong\u003e) is engineered strictly for the naturally aspirated, single overhead cam \u003cstrong\u003eNissan E-Series (E13 \/ E15)\u003c\/strong\u003e engine architecture shared between Nissan and Holden during their mid-1980s platform partnership. It will not fit later-generation overhead-cam engines or multi-valve layouts safely. Please verify your exact engine code configuration before placing an order.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePlease Note: Professional installation by an exhaust specialist or qualified technician is highly recommended to guarantee proper system mapping and a perfect gas-tight seal.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eImportant Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe image shown may not reflect the actual product design.\u003c\/li\u003e\n\u003cli\u003eEnsure your vehicle details match the application guide below before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 100%; padding: 20px; border: 1px solid #ccc; border-radius: 5px; font-size: 1rem;\" class=\"product-details-container\"\u003e\n\u003ch2\u003eVehicle Applications for A22 Performance E13 \u0026amp; E15 FWD Extractors\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 10px;\"\u003e\n\u003ctable style=\"min-width: 1100px; border-collapse: collapse; font-size: 1rem; line-height: 1.5; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f0; border-bottom: 3px solid #333;\"\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd; white-space: nowrap;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd; white-space: nowrap;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd; white-space: nowrap;\"\u003eYear Range Spec\u003c\/th\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd;\"\u003eBody Type\u003c\/th\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd;\"\u003eChassis Series\u003c\/th\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd;\"\u003eEngine Details\u003c\/th\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd; white-space: nowrap;\"\u003eFitting Time\u003c\/th\u003e\n\u003cth style=\"padding: 10px 8px; text-align: left; border: 1px solid #ddd;\"\u003eDrivetrain \/ Fitment Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap; font-weight: bold;\"\u003eHolden \/ G.M.H.\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap; font-weight: bold;\"\u003eAstra\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap;\"\u003e1984 – 1985\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3-Door \/ 5-Door Hatchback\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLB Series Only\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1.5L Inline-4 Petrol (Nissan E15 SOHC)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap;\"\u003e1.0 Hour\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFWD | Directly replaces restrictive cast iron factory setups. Shared layout with Nissan Pulsar.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap; font-weight: bold;\"\u003eNissan\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap; font-weight: bold;\"\u003ePulsar\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap;\"\u003e1980 – 1985\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHatchback \/ Sedan \/ Panel Van\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eN10 \/ N12 Series\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1.3L E13 \/ 1.5L E15 Inline-4 SOHC Petrol\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap;\"\u003e1.5 Hours\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFWD | High-flow mandrel-bent design optimized to replace warped stock cast manifolds cleanly.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap; font-weight: bold;\"\u003eNissan\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap; font-weight: bold;\"\u003ePrairie\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap;\"\u003e1982 – 1985\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePeople Mover Wagon\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM10 Series\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1.5L Inline-4 Petrol (Nissan E15 SOHC)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; white-space: nowrap;\"\u003e1.5 Hours\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFWD | Smooth tubular geometry curves past engine bay obstacles safely. Direct block bolt-on.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePayment \u0026amp; Security\u003c\/h2\u003e\n\u003cp\u003eYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.\u003c\/p\u003e","brand":"Advance Headers","offers":[{"title":"Default Title","offer_id":45735850901666,"sku":"A22","price":450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/1112\/4898\/files\/GenericHeader_8f7b06fa-e39b-44a2-b736-4f57324087ba.png?v=1766995011","url":"https:\/\/nationaltowbars.com.au\/products\/advance-headers-holden-4-cylinder-astra-lb-84-85-a22","provider":"National Towbars Australia","version":"1.0","type":"link"}