{"title":"Headers","description":"\u003cp\u003eIAG Performance carries Subaru headers for WRX, STI, Legacy GT, and Forester XT EJ25 and FA20 engines, including our IAG Performance equal-length and unequal-length header uppipes and matching header install kits. A quality header improves exhaust flow and contributes to better performance throughout the rev range.\u003c\/p\u003e","products":[{"product_id":"iag-performance-equal-length-3-bolt-header-uppipe-for-02-14-wrx-04-21-sti-05-09-lgt-04-08-fxt","title":"IAG Performance Equal Length 3-Bolt Header \u0026 Uppipe for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-08 FXT","description":"\u003cp\u003eIAG's Equal Length Headers are the perfect way to add more performance to your Subaru WRX STI. By implementing a 4-2-1 configuration with equal-length tubing and merged collector, IAG is able to improve your turbo spool up by 300rpm. Due to the free-flowing design of this header, you will see gains across the entire RPM range, as exhaust flow is vastly improved. The IAG headers are fully constructed of 304 stainless steel, including cast stainless flanges! The equal length headers feature a 45mm pipe diameter for maximum flow and performance. The header also features a slip-joint expansion section to accommodate for flex caused by heat cycling. Each IAG header is fully TIG welded for maximum strength. \u003cbr\u003e\u003cbr\u003eEach header package includes the IAG 60mm uppipe that utilizes a 3-bolt cast flange and multi-layer gasket between the manifold and uppipe, providing a stable connection without exhaust leaks. The IAG Header \u0026amp; Uppipe adds all of the hardware and high quality, multi-layer gaskets needed for installation including specialty copper exhaust nuts, which are proven to maintain their torque even in the extreme conditions of heat cycling present at the exhaust flange. \u003cbr\u003e\u003cbr\u003eDue to the equal length design, these headers will alter the exhaust tone from the distinct \"boxer rumble\" to a smoother exhaust note. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePackage includes: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(x1) Equal Length Stainless Steel Header\u003c\/li\u003e\n\u003cli\u003e(x1) 3 Bolt Stainless Steel Uppipe\u003c\/li\u003e\n\u003cli\u003e(x1) 3 Bolt Uppipe Gasket\u003c\/li\u003e\n\u003cli\u003e(x3) Uppipe to Manifold Zinc Plated Bolts and Nuts.\u003c\/li\u003e\n\u003cli\u003e(x5) Uppipe to Turbo Threaded Studs\u003c\/li\u003e\n\u003cli\u003e(x1) EGT Plug\u003c\/li\u003e\n\u003cli\u003e(x6) Copper Flange Nuts (Manifold to Head)\u003c\/li\u003e\n\u003cli\u003e(x2) Manifold to Cylinder Head Gaskets\u003c\/li\u003e\n\u003cli\u003e(x1) Uppipe to Turbo Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eFitment Notes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis header will remove the \"Boxer\" rumble when installed.\u003c\/li\u003e\n\u003cli\u003e2002-05 WRX Requires 2.5L STI Oil Pan\u003c\/li\u003e\n\u003cli\u003e2006-07 WRX Requires STI Oil Cooler and STI Oil Pan\u003c\/li\u003e\n\u003cli\u003e2004 Forester XT Requires STI Oil Cooler and STI Oil Pan\u003c\/li\u003e\n\u003cli\u003e2005-08 Forester XT Requires STI Oil Cooler\u003c\/li\u003e\n\u003cli\u003e2005 Legacy GT Requires STI Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062305960154,"sku":"IAG-EXT-1001","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apirg8cbq__75310.1645469732.1280.1280.jpg?v=1781529597"},{"product_id":"iag-performance-unequal-length-3-bolt-header-uppipe-for-02-14-wrx-04-21-sti-05-09-lgt-04-08-fxt","title":"IAG Performance Unequal Length 3-Bolt Header \u0026 Uppipe for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-08 FXT","description":"\u003cp\u003eThe IAG Unequal Length Headers are the perfect way to add more performance to your Subaru WRX STI and still keep the iconic \"Boxer Rumble.\" The headers are fully constructed of 304 stainless steel, including cast stainless flanges! The unequal length headers feature a 45mm pipe diameter for maximum flow and performance. Due to the free-flowing design of this header, you will see gains across the entire RPM range, as exhaust flow is vastly improved. The header also features a slip-joint expansion section to accommodate for flex caused by heat cycling. Each IAG header is fully TIG welded for maximum strength. \u003cbr\u003e\u003cbr\u003eEach header package includes the IAG 60mm uppipe that utilizes a 3-bolt cast flange and multi-layer gasket between the manifold and uppipe, providing a stable connection without exhaust leaks. The IAG Header \u0026amp; Uppipe adds all of the hardware and high quality, multi-layer gaskets needed for installation including specialty copper exhaust nuts, which are proven to maintain their torque even in the extreme conditions of heat cycling present at the exhaust flange. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePackage includes: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(x1) Unequal Length Stainless Steel Header\u003c\/li\u003e\n\u003cli\u003e(x1) 3 Bolt Stainless Steel Uppipe\u003c\/li\u003e\n\u003cli\u003e(x1) 3 Bolt Uppipe Gasket\u003c\/li\u003e\n\u003cli\u003e(x3) Uppipe to Manifold Zinc Plated Bolts and Nuts.\u003c\/li\u003e\n\u003cli\u003e(x5) Uppipe to Turbo Threaded Studs\u003c\/li\u003e\n\u003cli\u003e(x1) EGT Plug\u003c\/li\u003e\n\u003cli\u003e(x6) Copper Flange Nuts (Manifold to Head)\u003c\/li\u003e\n\u003cli\u003e(x2) Manifold to Cylinder Head Gaskets\u003c\/li\u003e\n\u003cli\u003e(x1) Uppipe to Turbo Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eFitment Notes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2002-05 Subaru WRX Requires 2.5L STI Oil Pan\u003c\/li\u003e\n\u003cli\u003e2006-07 WRX Requires STI Oil Cooler and STI Oil Pan\u003c\/li\u003e\n\u003cli\u003e2002-07 WRX \/ STI Chassis requires slight modification to the passenger side U-Frame.\u003c\/li\u003e\n\u003cli\u003e2004 Forester XT Requires STI Oil Cooler and STI Oil Pan\u003c\/li\u003e\n\u003cli\u003e2005-08 Forester XT Requires STI Oil Cooler\u003c\/li\u003e\n\u003cli\u003e2005 Legacy GT Requires STI Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062312055002,"sku":"IAG-EXT-1000","price":849.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apiebb8ij__57060.1649624321.1280.1280.jpg?v=1781529620"},{"product_id":"iag-performance-equal-length-header-for-fa20-dit-2015-21-wrx","title":"IAG Performance Equal Length Header for FA20 DIT 2015-21 WRX","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG PERFORMANCE EQUAL LENGTH HEADER FOR FA20 DIT 2015-21 WRX\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG Performance Equal Length Header for FA20 DIT 2015-21 WRX\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/1dabc6d1-944a-428b-902b-d3db40611fbf\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eTHE IAG PERFORMANCE EQUAL LENGTH HEADER\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Equal Length Header is the perfect upgrade to boost the performance and power in your 2015-2021 Subaru WRX with the FA20 DIT engine. While the OEM headers restrict the airflow behind the engine port, the collector pipes and the turbo port, IAG’s precision engineered header provides a clear path for increased airflow, resulting in more power and greater efficiency.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG’s Equal Length Header decreases turbulence\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/75fa49e3-64b7-4738-a0fe-57e0d322739f\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eGAME-CHANGING UPGRADE\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIn addition to the improvements in airflow, the equal-length tubing in IAG’s Equal Length Header decreases turbulence that is commonly found in unequal-length (UEL) header setups. The main goal of the exhaust system is to move gases away from the engine as quickly as possible. With UEL headers, it takes more time for the gases to pass through the two longer header pipes to reach the collector, causing an imbalance of backpressure at the exhaust ports, decreasing the overall performance of the exhaust.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Equal Length Header Flange\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/5baf1dd4-aa9f-4763-b7aa-d0b0b12923b6\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePROTECT YOUR RINGLANDS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe lingering exhaust gasses in the longer tubes of the UEL header systems can also cause increased temperatures at the cylinders, which can lead to ringland failure. This problem is solved by the IAG Equal Length Header's equal-length tubes, which provide lower and more stable cylinder temperatures, helping to reduce the chance of ringland failure.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG WRX Equal Length Header Stainless Steel Construction\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ffea9499-5326-41c0-91f6-ea536adc5654\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eSTAINLESS STEEL CONSTRUCTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Equal Length Header is TIG welded and fully constructed from 304 stainless steel, including the cast stainless flanges. This premium-grade stainless steel ensures long-lasting resilience, even at high temperatures. The IAG Header pipes feature a consistent 45mm (1.77 inch) inner diameter throughout, providing an improvement over the 40mm restriction found in the OEM version. Additionally, the flange openings at the turbo ports have been widened to 42mm (1.65 inch) to provide maximum flow and performance. Finally, the header incorporates the use of a slip-joint expansion section to accommodate for flex caused by heat cycling.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG EL Header Gaskets and Hardware\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/9c346b5e-6bb6-417f-84d8-295835bc1e55\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062558568666,"sku":"IAG-EXT-1006","price":849.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-EXT-1006-01__86570.1730489116.1280.1280.jpg?v=1781530687"}],"url":"https:\/\/www.iagperformance.com\/collections\/iag-parts-engine-exhausts-headers.oembed","provider":"IAG Performance","version":"1.0","type":"link"}