{"product_id":"flowtech-upright-headers-11546flt","title":"Flowtech Upright Headers  - 11546FLT","description":"\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFlowtech Headers are the perfect combination of quality and value. These Small Block Chevy Upright headers available in 1-5\/8\" and 1-3\/4\" tube diameters are ideal for even big cubic inch Small Block Chevy engines. They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing\u003c\/li\u003e\n\u003cli\u003eHeavy duty 16-gauge 409SS tubing for increased strength and durability\u003c\/li\u003e\n\u003cli\u003e1-5\/8” and 1-3\/4” tubing diameters available for increased exhaust flow increasing performance and improved throttle response\u003c\/li\u003e\n\u003cli\u003e3” collector for maximum strength and exhaust flow\u003c\/li\u003e\n\u003cli\u003eExtra thick header flange for a leak-free seal and maximum strength\u003c\/li\u003e\n\u003cli\u003eWelded-in collector merge spears to control exhaust gas re-entry into primary tubes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eApplication:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1955-1986 Chevrolet Corvette\u003c\/li\u003e\n\u003cli\u003e1959-1986 Pontiac Parisienne\u003c\/li\u003e\n\u003cli\u003e1959-1986 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1958-1985 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1955-1981 Pontiac Laurentian\u003c\/li\u003e\n\u003cli\u003e1955-1981 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1966-1986 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1967-1986 Chevrolet K20 Suburban\u003c\/li\u003e\n\u003cli\u003e1967-1986 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1964-1983 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1967-1986 Chevrolet C20 Suburban\u003c\/li\u003e\n\u003cli\u003e1967-1986 Chevrolet C10 Suburban\u003c\/li\u003e\n\u003cli\u003e1967-1986 Chevrolet K10 Suburban\u003c\/li\u003e\n\u003cli\u003e1968-1986 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1970-1986 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1970-1986 GMC Jimmy\u003c\/li\u003e\n\u003cli\u003e1971-1986 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1958-1972 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1960-1974 Chevrolet C20 Pickup\u003c\/li\u003e\n\u003cli\u003e1960-1974 Chevrolet C10 Pickup\u003c\/li\u003e\n\u003cli\u003e1960-1974 Chevrolet C30 Pickup\u003c\/li\u003e\n\u003cli\u003e1960-1974 Chevrolet K10 Pickup\u003c\/li\u003e\n\u003cli\u003e1960-1974 Chevrolet K20 Pickup\u003c\/li\u003e\n\u003cli\u003e1958-1972 Chevrolet Brookwood\u003c\/li\u003e\n\u003cli\u003e1968-1981 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1959-1972 Chevrolet Kingswood\u003c\/li\u003e\n\u003cli\u003e1958-1970 Pontiac Strato-Chief\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet C30\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet C20\u003c\/li\u003e\n\u003cli\u003e1970-1981 Pontiac Catalina\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet K10\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet K20\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet G10\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet G20\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet G30\u003c\/li\u003e\n\u003cli\u003e1975-1986 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet K5 Blazer\u003c\/li\u003e\n\u003cli\u003e1975-1986 Chevrolet C10\u003c\/li\u003e\n\u003cli\u003e1969-1979 Chevrolet Nova\u003c\/li\u003e\n\u003cli\u003e1964-1973 Chevrolet Chevelle\u003c\/li\u003e\n\u003cli\u003e1977-1986 Chevrolet K30\u003c\/li\u003e\n\u003cli\u003e1977-1986 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1978-1986 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1978-1986 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1975-1983 Pontiac Grand LeMans\u003c\/li\u003e\n\u003cli\u003e1978-1986 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC C3500\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC G1500\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC C2500 Suburban\u003c\/li\u003e\n\u003cli\u003e1967-1974 Chevrolet G20 Van\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC C15\/C1500 Suburban\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC C25\/C2500 Suburban\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1973-1980 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC K1500\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC K1500 Suburban\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC K2500\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC K2500 Suburban\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC C25\/C2500 Pickup\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC C35\/C3500 Pickup\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC G15\/G1500 Van\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC G2500\u003c\/li\u003e\n\u003cli\u003e1975-1982 Oldsmobile Delta 88\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC G3500\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC C15\/C1500 Pickup\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC K15\/K1500 Suburban\u003c\/li\u003e\n\u003cli\u003e1964-1971 Pontiac Acadian\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC K3500\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC K25\/K2500 Pickup\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC K25\/K2500 Suburban\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC C1500 Suburban\u003c\/li\u003e\n\u003cli\u003e1979-1986 GMC C2500\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC G25\/G2500 Van\u003c\/li\u003e\n\u003cli\u003e1967-1974 GMC K15\/K1500 Pickup\u003c\/li\u003e\n\u003cli\u003e1968-1974 Chevrolet G10 Van\u003c\/li\u003e\n\u003cli\u003e1971-1977 Pontiac Ventura\u003c\/li\u003e\n\u003cli\u003e1968-1974 GMC K35\/K3500 Pickup\u003c\/li\u003e\n\u003cli\u003e1971-1977 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1968-1974 Chevrolet K30 Pickup\u003c\/li\u003e\n\u003cli\u003e1978-1984 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1955-1961 Chevrolet Nomad\u003c\/li\u003e\n\u003cli\u003e1960-1966 GMC 3000\u003c\/li\u003e\n\u003cli\u003e1960-1966 GMC 3500\u003c\/li\u003e\n\u003cli\u003e1960-1966 Chevrolet Suburban\u003c\/li\u003e\n\u003cli\u003e1969-1974 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e1963-1968 Chevrolet Chevy II\u003c\/li\u003e\n\u003cli\u003e1964-1969 Pontiac Beaumont\u003c\/li\u003e\n\u003cli\u003e1960-1965 GMC Suburban\u003c\/li\u003e\n\u003cli\u003e1955-1960 GMC Truck\u003c\/li\u003e\n\u003cli\u003e1955-1960 Chevrolet Truck\u003c\/li\u003e\n\u003cli\u003e1970-1974 Chevrolet G30 Van\u003c\/li\u003e\n\u003cli\u003e1970-1974 GMC G35\/G3500 Van\u003c\/li\u003e\n\u003cli\u003e1975-1979 Chevrolet Monza\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC PM150\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC PM250\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC S300\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC S370\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC 100\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC 150\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC 250\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC 300\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC 350-8\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC 370\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC F350\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC F370\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC FM340\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC FM350\u003c\/li\u003e\n\u003cli\u003e1955-1959 GMC M300\u003c\/li\u003e\n\u003cli\u003e1977-1981 Buick Century\u003c\/li\u003e\n\u003cli\u003e1978-1982 Buick LeSabre\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC G15\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC G25\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC C35\u003c\/li\u003e\n\u003cli\u003e1956-1959 GMC PM151\u003c\/li\u003e\n\u003cli\u003e1956-1959 GMC PM251\u003c\/li\u003e\n\u003cli\u003e1972-1975 Pontiac Grandville\u003c\/li\u003e\n\u003cli\u003e1971-1974 Pontiac Grand Safari\u003c\/li\u003e\n\u003cli\u003e1973-1976 Chevrolet Laguna\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC K15 Suburban\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC K25\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC K25 Suburban\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC C15\u003c\/li\u003e\n\u003cli\u003e1980-1983 Oldsmobile Cutlass Cruiser\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC G35\u003c\/li\u003e\n\u003cli\u003e1955-1958 Pontiac Pathfinder\u003c\/li\u003e\n\u003cli\u003e1955-1958 Chevrolet Sedan Delivery\u003c\/li\u003e\n\u003cli\u003e1960-1963 GMC 2500 Series\u003c\/li\u003e\n\u003cli\u003e1960-1963 GMC 1000 Series\u003c\/li\u003e\n\u003cli\u003e1960-1963 GMC 1500 Series\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet Townsman\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC C15 Suburban\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC C25\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC C25 Suburban\u003c\/li\u003e\n\u003cli\u003e1975-1978 GMC K15\u003c\/li\u003e\n\u003cli\u003e1968-1970 Pontiac Tempest\u003c\/li\u003e\n\u003cli\u003e1957-1959 GMC PM152\u003c\/li\u003e\n\u003cli\u003e1957-1959 GMC PM153\u003c\/li\u003e\n\u003cli\u003e1977-1979 Pontiac Phoenix\u003c\/li\u003e\n\u003cli\u003e1975-1977 Oldsmobile Custom Cruiser\u003c\/li\u003e\n\u003cli\u003e1978-1980 Oldsmobile Cutlass Salon\u003c\/li\u003e\n\u003cli\u003e1977-1979 Oldsmobile Omega\u003c\/li\u003e\n\u003cli\u003e1959-1961 Chevrolet Parkwood\u003c\/li\u003e\n\u003cli\u003e1955-1957 Chevrolet Two-Ten Series\u003c\/li\u003e\n\u003cli\u003e1955-1957 Chevrolet One-Fifty Series\u003c\/li\u003e\n\u003cli\u003e1972-1974 Chevrolet P30 Van\u003c\/li\u003e\n\u003cli\u003e1977-1979 Oldsmobile Starfire\u003c\/li\u003e\n\u003cli\u003e1977-1979 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1969-1970 Chevrolet Estate\u003c\/li\u003e\n\u003cli\u003e1978-1979 Pontiac Sunbird\u003c\/li\u003e\n\u003cli\u003e1957-1958 Chevrolet Del Ray\u003c\/li\u003e\n\u003cli\u003e1955-1956 GMC M340\u003c\/li\u003e\n\u003cli\u003e1977-1978 GMC K35\u003c\/li\u003e\n\u003cli\u003e1958 GMC PM252\u003c\/li\u003e\n\u003cli\u003e1958 GMC PM253\u003c\/li\u003e\n\u003cli\u003e1958 Chevrolet Yeoman\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet 3B\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet 3C\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet 3D\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet 3E\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet 3F\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet 3G\u003c\/li\u003e\n\u003cli\u003e1967 Chevrolet K20 Panel\u003c\/li\u003e\n\u003cli\u003e1955 GMC 100-22\u003c\/li\u003e\n\u003cli\u003e1955 GMC 150-22\u003c\/li\u003e\n\u003cli\u003e1955 GMC 250-22\u003c\/li\u003e\n\u003cli\u003e1955 GMC 280-22\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eSmall Block Chevy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eFlowtech\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCollector Diameter\u003c\/th\u003e\n\u003ctd\u003e3.00 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCollector Length\u003c\/th\u003e\n\u003ctd\u003e12 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmission Code\u003c\/th\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003ctd\u003eChevrolet Small Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeader Finish\u003c\/th\u003e\n\u003ctd\u003eNatural\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeader Style\u003c\/th\u003e\n\u003ctd\u003eUpright\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstalled Height\u003c\/th\u003e\n\u003ctd\u003e37.0\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Tube Dia.\u003c\/th\u003e\n\u003ctd\u003e1-3\/4 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Material\u003c\/th\u003e\n\u003ctd\u003e409 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarning\u003c\/th\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"FlowTech","offers":[{"title":"Default Title","offer_id":32568642699313,"sku":"11546FLT","price":299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2493\/0960\/files\/flowtech-upright-headers-11546flt-modern-day-muffler-1.jpg?v=1738849148","url":"https:\/\/moderndaymuffler.com\/products\/flowtech-upright-headers-11546flt","provider":"Modern Day Muffler","version":"1.0","type":"link"}