{"product_id":"4-1-race-header","title":"4-1 Race Header","description":"The FSWERKS 4-1 Race Header is engineered for maximum exhaust flow and performance, specifically designed for track use on Duratec Focus models.\n\nConstructed from robust 16-gauge heavy-duty steel, this header features thick 3\/8\" laser-cut flanges, 1 7\/8\" mandrel-bent runners, and a 2 1\/2\" ID collector to ensure optimal exhaust gas velocity. It is finished with a polished ceramic coating rated for temperatures up to 1200° Fahrenheit, offering both aesthetic appeal and durability under high heat conditions.\n\nInstallation is facilitated by the included oxygen sensor harness extenders, a 2-bolt gasket, and mounting hardware, requiring no welding. It is designed to provide a performance boost, with documented gains of 8-10 horsepower and 6-8 lbs. of torque at the wheels for lightly modified vehicles, with potential for greater gains on highly modified engines.\n\n**Important Considerations:** This product is strictly for RACE USE ONLY and is not street legal or intended for public roads. It is not for sale in California, and a release waiver must be completed and submitted with your order for shipment. A flex pipe is not included and may be necessary depending on the vehicle configuration. Fitment is confirmed for Ford Focus models with Duratec 2.0L (2005-2011) and 2.3L (2003-2007) engines, including the Focus ST Duratec 2.3L (2005-2007).","brand":"FSWERKS","offers":[{"title":"Default Title","offer_id":52688460054840,"sku":"FS029","price":499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/662662698.webp?v=1784890268","url":"https:\/\/store.motormia.co\/products\/4-1-race-header","provider":"MOTORMIA","version":"1.0","type":"link"}