{"product_id":"korsh-subaru-wrx-sti-lgt-foz-unequal-length-headers-ej20-26","title":"Korsh - Subaru WRX STI\/ LGT\/FOZ Unequal Length headers EJ20\/25","description":"\u003cp\u003e\u003cspan\u003eKorsh Unequal Length Headers are engineered specifically for your Subaru WRX STI to unlock measurable performance improvements. The strategically designed unequal-length configuration optimizes exhaust scavenging, translating to sharper throttle response and enhanced power delivery. Built with premium materials that withstand extreme heat and stress, these headers combine durability with proven performance gains. Whether you're pushing on the track or enjoying spirited driving, you'll feel the difference that precision engineering delivers. Transform your WRX STI's exhaust system and experience the responsive, powerful performance you've been seeking.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits:\u003c\/strong\u003e\u003cbr\u003eFaster turbo spool\u003cbr\u003eImproved exhaust flow\u003cbr\u003eBetter throttle response\u003cbr\u003eMaintains boxer sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications (Point Form):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e304 stainless steel (mandrel bent tubes, TIG-welded)\u003cbr\u003e\u003cstrong\u003ePrimary runner size (header):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e42.7mm\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(~1.77\") with 2mm thick wall\u003cbr\u003e\u003cstrong\u003eUppipe diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e60.5 mm\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(~2.36\") with 2mm thick wall\u003cbr\u003e\u003cstrong\u003eDesign:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnequal Length (preserves Subaru \"rumble\")\u003cbr\u003e\u003cstrong\u003eFlange style:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWax Cast stainless\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e3-bolt uppipe flange\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eFlex \/ expansion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSlip-joint section to allow thermal expansion\u003cbr\u003e\u003cstrong\u003eHardware included:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eCopper flange nuts\u003cbr\u003eMulti-layer steel gaskets (header + uppipe)\u003cbr\u003eZinc-plated bolts\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003cbr\u003e2002-2014 WRX\u003cbr\u003e2004-2021 STI\u003cbr\u003e2005-2009 Liberty GT\u003cbr\u003e2004-2013 Forester XT\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFitment Notes:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e02-05 WRX → requires\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSTI oil pan\u003c\/strong\u003e\u003cbr\u003e06-07 WRX → requires\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSTI oil pan + STI oil cooler\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eSome cars may require minor U-frame clearance trimming\u003c\/p\u003e","brand":"Korsh","offers":[{"title":"Without","offer_id":47365055217921,"sku":"KOR-EXH-UEL-001","price":1099.0,"currency_code":"AUD","in_stock":true},{"title":"With","offer_id":47365055250689,"sku":"KOR-EXH-UEL-002","price":1190.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1921\/7937\/files\/1_cac7bf5b-ef59-42f7-adfe-36e95a11c568.webp?v=1766030134","url":"https:\/\/dcjapautomotive.com\/products\/korsh-subaru-wrx-sti-lgt-foz-unequal-length-headers-ej20-26","provider":"DC Jap Automotive","version":"1.0","type":"link"}