{"product_id":"4-1-headers-w-y-pipes-1-3-4-primary-2-1-2-collector","title":"4:1 Headers w\/ Y-Pipes, 1-3\/4\" Primary, 2-1\/2\" Collector","description":"The Doug Thorley THY-340-C headers and Y-pipes are engineered to enhance the performance of select V8 models. Specifically designed for the 5.3L V8 engine found in the 2006-2009 Chevrolet Impala SS, 2005-2009 Chevrolet Monte Carlo SS, 2005-2008 Pontiac Grand Prix GXP, and 2007-2009 Buick Lacrosse, these headers aim to extract more power.\n\nConstructed from robust 14-gauge steel, these headers feature a 4:1 design with 1-3\/4\" primary tubes and a 2-1\/2\" collector. They are finished with a silver ceramic coating, which helps to reduce under-hood temperatures and provides environmental protection. The kit includes bolts, and the Y-pipe has a 2-1\/2\" inlet that connects to a 3\" outlet, requiring welding for installation. The product is 100% American-made and includes a limited lifetime warranty.\n\nInstallation notes specify that the Y-pipe outlet must be welded to the exhaust inlet. Crucially, these headers are NOT legal for street use on pollution-controlled vehicles and CANNOT be shipped to California due to emissions regulations.","brand":"Doug Thorley","offers":[{"title":"Default Title","offer_id":52687721136440,"sku":"THY-340-C","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/663680866.webp?v=1784886552","url":"https:\/\/store.motormia.co\/products\/4-1-headers-w-y-pipes-1-3-4-primary-2-1-2-collector","provider":"MOTORMIA","version":"1.0","type":"link"}