{"product_id":"new-old-stock-nos-volkswagen-performance-header-and-muffler-system","title":"NOS VW Performance Header \u0026 Muffler System | Beetle, Karmann Ghia \u0026 Early Bus | 4-into-1 Extractor (E15)","description":"\u003ch2\u003e\u003cb\u003eNOS VW Performance Header \u0026amp; Muffler System — 4-into-1 Extractor\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cb\u003eNew Old Stock (NOS) Volkswagen Performance Header and Muffler System\u003c\/b\u003e designed for the classic air-cooled flat-four engine. This all-in-one \"extractor\" style exhaust is a period-correct upgrade for owners looking to improve engine breathing and achieve a deeper, throatier exhaust note. Tubing measures \u003cb\u003e1-1\/4\"\u003c\/b\u003e throughout the system except at the ports, where it steps up to \u003cb\u003e1-3\/8\"\u003c\/b\u003e diameter.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVW Beetle:\u003c\/b\u003e All years (air-cooled Type 1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKarmann Ghia:\u003c\/b\u003e All years\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEarly Bus \/ Transporter:\u003c\/b\u003e All years\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEngine sizes:\u003c\/b\u003e 1200cc, 1300cc, 1500cc, and 1600cc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFour-into-One Extractor Design:\u003c\/b\u003e Mandrel-bent primary tubes merge into a single collector, equalizing exhaust pulses for improved horsepower and torque over the restrictive stock \"pea-shooter\" design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Glass-Pack Muffler:\u003c\/b\u003e The large-diameter main body houses a high-flow resonator, finished with a classic flared chrome tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Heat Finish:\u003c\/b\u003e Durable satin black heat-resistant finish to resist corrosion and withstand high engine-bay temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Accessory Quality:\u003c\/b\u003e Carries an authentic VW Accessory decal, indicating a premium aftermarket or dealership-offered performance part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation:\u003c\/b\u003e Bolts directly to the cylinder-head exhaust ports using the standard 2-bolt flange pattern found on most air-cooled Type 1 engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Heavy-duty mild steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e High-temp satin black with chrome tip\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConfiguration:\u003c\/b\u003e 4-into-1 single hot spot\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTubing:\u003c\/b\u003e 1-1\/4\" throughout, 1-3\/8\" at the ports\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Fitment:\u003c\/b\u003e 1200cc, 1300cc, 1500cc, 1600cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e E15\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhat size is the tubing?\u003c\/b\u003e 1-1\/4\" throughout the system, stepping up to 1-3\/8\" diameter at the ports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhich engines does it fit?\u003c\/b\u003e Air-cooled Type 1 engines in 1200cc, 1300cc, 1500cc, and 1600cc, using the standard 2-bolt exhaust flange pattern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIs it new?\u003c\/b\u003e It is New Old Stock (NOS) — never installed, though it may show minor shelf wear such as light scuffs in the coating, which is common for authentic NOS parts of this era.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eCondition Note:\u003c\/b\u003e This is a vintage item. While never installed, it may show minor \"shelf wear\" such as light scuffs in the black coating, which is common for authentic NOS parts of this era.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eUpgrading your exhaust? Browse \u003ca href=\"\/collections\/exhaust\"\u003eExhaust\u003c\/a\u003e, \u003ca href=\"\/collections\/vw-beetle\"\u003eVW Beetle\u003c\/a\u003e, and \u003ca href=\"\/collections\/vw-bus\"\u003eVW Bus\u003c\/a\u003e.\u003c\/p\u003e","brand":"Washburn's Metal","offers":[{"title":"Default Title","offer_id":44283041480819,"sku":"E15","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/20250819_183901A.jpg?v=1770525937","url":"https:\/\/www.washburnsmetal.com\/products\/new-old-stock-nos-volkswagen-performance-header-and-muffler-system","provider":"Washburn's Metal","version":"1.0","type":"link"}