{"product_id":"speed-engineering-1979-2004-mustang-ls-swap-1-7-8-longtube-headers","title":"Speed Engineering 1979-2004 Mustang LS Swap 1 7\/8\" Longtube Headers","description":"\u003cp\u003eSpeed Engineering 25-1028 1 7\/8-inch longtube headers for GM LS-engine swaps into 1979-1993 Fox Body and 1994-2004 SN95\/New Edge Ford Mustang. Mandrel-bent, TIG-welded natural 304 stainless construction with 3-inch collectors, merge spikes, CNC-machined flanges, and included graphite gaskets.\u003c\/p\u003e\u003cp\u003eChoose SMG LS MLS gaskets, SMG 9070C ceramic plug wires, or both. The 9070C ceramic wires resist header heat and are the only plug wires SMG uses on its in-house header builds. GM LS swaps only—not for Ford engines. K-member, mounts, steering shaft, and clearance combinations must match the manufacturer notes. Race-use product.\u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Included Graphite Gaskets","offer_id":54157644103999,"sku":"25-1028","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Add SMG LS MLS Gaskets","offer_id":54157644136767,"sku":"25-1028+SMG-25-1001","price":369.98,"currency_code":"USD","in_stock":true},{"title":"Add SMG 9070C Ceramic Plug Wires","offer_id":54157644169535,"sku":"25-1028+9070C","price":464.99,"currency_code":"USD","in_stock":true},{"title":"Add SMG LS MLS Gaskets + 9070C Wires","offer_id":54157644202303,"sku":"25-1028+SMG-25-1001+9070C","price":504.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/2041\/6831\/files\/speed-engineering-25-1028.jpg?v=1784812530","url":"https:\/\/smgspeed.com\/products\/speed-engineering-1979-2004-mustang-ls-swap-1-7-8-longtube-headers","provider":"SMGspeed","version":"1.0","type":"link"}