{"product_id":"4-1-equal-length-header-for-ej20-ej25","title":"4-1 Equal Length Header for EJ20\/EJ25","description":"The MAPerformance 4-1 Equal Length Header is a new turbo manifold engineered for EJ20\/EJ25 series Subaru engines, offering an efficient and proven power upgrade. Constructed from premium 304 RathGibson stainless steel, this header is built to last and comes with a limited lifetime warranty.\n\nKey features include a 4-1 equal length design that is more efficient, a merge collector with a center cone for improved flow, and a 1\/2\" up-pipe flange designed to minimize warping. The header utilizes four 1.750\" runners that converge into a 2.25\" up tube and includes a bolt-in header support bracket. The flanges are flat-sanded to ensure a leak-free seal. The product is 100% made in the USA.\n\nNote that this coating may require a curing process involving heating and cooling cycles before full performance driving.\n\nThis header is designed to fit various Subaru models including the Impreza WRX EJ20 (2002-2005), Impreza WRX (2006–2014), Forester XT (2004–2013), Legacy GT (2005–2012), Impreza WRX STi (2004-2007), Impreza WRX STI (2008-2018), and WRX STI 2019+ (EJ engine). However, installation on pre-2006 STI models (EJ20 or 04\/05 STI) may require additional modifications such as an 06+ oil pan\/dipstick, and potential heat shielding for coolant lines. Users may also need to trim the passenger side lower fan shroud if using an aftermarket radiator.\n\nThe package includes the stainless header and a header support bracket.","brand":"MAPerformance","offers":[{"title":"Default Title","offer_id":52662944891192,"sku":"MAP WRX-4G-ELH","price":782.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687502755.webp?v=1784321926","url":"https:\/\/store.motormia.co\/products\/4-1-equal-length-header-for-ej20-ej25","provider":"MOTORMIA","version":"1.0","type":"link"}