{"product_id":"speed-engineering-ls-swap-1-7-8-longtube-headers-g-body-obs-2wd","title":"Speed Engineering LS Swap 1 7\/8\" Longtube Headers - G-Body \u0026 OBS 2WD","description":"\u003cp\u003eSpeed Engineering 25-1137 1 7\/8-inch LS-swap longtube headers. Speed Engineering currently publishes this same SKU for 1982-1987 GM G-Body applications and 1988-1998 Chevrolet\/GMC C1500 2WD OBS trucks. Mandrel-bent, TIG-welded 304 stainless construction with 3-inch collectors, merge spikes, CNC-machined flanges, and included graphite gaskets.\u003c\/p\u003e\u003cp\u003eThese tight-clearance headers require heat-resistant plug wires. Choose SMG LS MLS gaskets, SMG 9070C ceramic plug wires, or both. The ceramic wires are the only set used on SMG in-house header builds. LS-swap and 2WD\/source-specific installation restrictions apply. Race-use product.\u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Included Graphite Gaskets","offer_id":54157618217279,"sku":"25-1137","price":349.99,"currency_code":"USD","in_stock":true},{"title":"Add SMG LS MLS Gaskets","offer_id":54157618250047,"sku":"25-1137+SMG-25-1001","price":389.98,"currency_code":"USD","in_stock":true},{"title":"Add SMG 9070C Ceramic Plug Wires","offer_id":54157618282815,"sku":"25-1137+9070C","price":484.99,"currency_code":"USD","in_stock":true},{"title":"Add SMG LS MLS Gaskets + 9070C Wires","offer_id":54157618315583,"sku":"25-1137+SMG-25-1001+9070C","price":524.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/2041\/6831\/files\/25-1137-ls-swap-gbody-obs-headers.jpg?v=1784812125","url":"https:\/\/smgspeed.com\/products\/speed-engineering-ls-swap-1-7-8-longtube-headers-g-body-obs-2wd","provider":"SMGspeed","version":"1.0","type":"link"}