{"title":"Headers","description":"\u003cp\u003eShop Subaru exhaust headers at IAG Performance for 2002–2023 WRX, STI, Legacy GT, and Forester XT models. Choose from equal length and unequal length headers designed to improve exhaust flow, increase horsepower, and enhance engine performance. Whether you're building for power or dialing in that signature Subaru rumble, we offer high-quality headers from trusted brands like Borla, HKS, IAG Performance, Invidia, Killer B Motorsport, Perrin Performance, Tomei, and aFe.\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":"tomei-expreme-unequal-length-exhaust-manifold-for-2002-14-wrx-2004-21-sti-04-08-fxt-05-09-lgt","title":"Tomei Expreme Unequal Length Exhaust Manifold For 2006-14 WRX, 2004-21 STI, 04-08 FXT, 05-09 LGT","description":"\u003cp\u003eThe Tomei UEL Header for EJ20 and EJ25 turbo models features a highly efficient 4-1 exhaust manifold design. The header includes ultra-high quality lost wax cast exhaust flanges that are TIG welded to the SUS304 stainless steel mandrel-bent tubing. The kit includes a 3 - Bolt stainless steel uppipe designed to work with stock frame turbochargers. The unequal header design retains the OEM boxer engine sound that many enthusiasts love.\u003c\/p\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":48062321983706,"sku":"TB6010-SB02A","price":801.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apidqkgg4__36008.1695327610.1280.1280.jpg?v=1781529642"},{"product_id":"tomei-equal-length-exhaust-manifold-for-2008-14-wrx-2004-20-sti","title":"Tomei Equal Length Exhaust Manifold For 2006-14 WRX, 2004-21 STI","description":"\u003cp\u003eThe Tomei EL Header for EJ25 turbo models features a isometric 4-2-1 exhaust manifold designed to extract the most power at high RPM. The header includes ultra-high quality lost wax cast exhaust flanges that are TIG welded to the SUS304 stainless steel mandrel-bent tubing. The kit includes a 3 - Bolt stainless steel uppipe designed to work with stock frame turbochargers. The equal length header design loses the OEM boxer engine sound and will fit earlier 2002-07 WRX models but they require an STI oil pan and oil pickup.\u003c\/p\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":48062315200730,"sku":"TB6010-SB02B","price":890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/api1yyhvp__00661.1696947742.1280.1280.jpg?v=1781529658"},{"product_id":"borla-short-tube-header-for-2006-14-subaru-wrx-04-21-sti-05-09-lgt-04-13-fxt-17217","title":"Borla Short Tube Header for 2006-14 Subaru WRX, 04-21 STI, 05-09 LGT, 04-13 FXT","description":"\u003cp\u003eIncreased performance through efficient flow…Greater durability through high quality, T-304 austenitic stainless steel, material and a unique, stiffened, flex joint.\u003c\/p\u003e\u003cp\u003eEach header is built from premium T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow \u0026amp; power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit.\u003c\/p\u003e\u003cp\u003eBest of all, it's made in the USA and backed by the BORLA® Million-Mile Warranty. Just what you‘d expect from the world‘s most experienced (and most winning) exhaust brand.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGaskets are NOT included.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eEmissions:\u003c\/strong\u003e\u003cbr\u003eThis header is covered by California Air Resources Board Executive Order (E.O.) # D-276-12 for 2001-2003 WRX. Please note that even though this header will fit models from 2001-2018 the E.O. # ONLY covers 2001-2003 WRX.\u003c\/p\u003e","brand":"Borla","offers":[{"title":"Default Title","offer_id":48062437163226,"sku":"BOR17217","price":936.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/631e50e2ff0179cd0c467a666a65195f__15329.1642489069.1280.1280.jpg?v=1781530114"},{"product_id":"afe-twisted-steel-long-tube-header-unequal-length-for-2002-14-subaru-wrx-04-21-wrx-sti-48-36803","title":"aFe Twisted Steel Long Tube Header (Unequal Length) for 2002-14 Subaru WRX\/04-21 WRX STI - 48-36803","description":"\u003ch2 style=\"text-align:center;\"\u003eTWISTED STEEL LONG TUBE HEADER\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eDetails:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from 1-5\/8\" - 2-1\/2\" Mandrel-Bent Brushed Finished 304 Stainless Steel Tubing\u003c\/li\u003e\n\u003cli\u003eOptimized Tube Lengths for Improve Flow and Performance\u003c\/li\u003e\n\u003cli\u003eLaser Cut Flanges are used for a Durable Leak-Free Seal\u003c\/li\u003e\n\u003cli\u003e100% TIG-Welded for Strength and Durability\u003c\/li\u003e\n\u003cli\u003eWorks with Factory Exhaust System with No Modifications Necessary\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e1-5\/8\" - 2-1\/2\" 304 Stainless Steel Construction:\u003c\/strong\u003e\u003cbr\u003eThis system is constructed of 1-5\/8\" - 2-1\/2\" mandrel-bent brushed finished 304 stainless steel tubing for maximum strength and durability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUnequal Tube Lengths:\u003c\/strong\u003e\u003cbr\u003eThis header features Unequal Tube lengths to accentuate the iconic Boxer Rumble.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLaser Cut Flanges:\u003c\/strong\u003e\u003cbr\u003eFactory style laser cut steel flanges are used for a secure, leak-free seal.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003cbr\u003eUtilizing factory style flanges this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFormed Collector:\u003c\/strong\u003e\u003cbr\u003eFormed collectors decrease turbulence and increase exhaust velocity. The result is increased horsepower, torque and improved throttle response.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTIG-Welded:\u003c\/strong\u003e\u003cbr\u003e100% TIG-welded for race proven strength and durability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEmissions Disclaimer:\u003c\/strong\u003e\u003cbr\u003eThis product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.\u003c\/p\u003e","brand":"aFe","offers":[{"title":"Default Title","offer_id":48062438768858,"sku":"AFE48-36803","price":845.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/d151411ac092e5b096a6adc8c2c4ae59__69507.1643315208.1280.1280.jpg?v=1781530119"},{"product_id":"hks-sti-stainless-steel-exhaust-manifold-for-2004-07-subaru-sti-1419-rf001","title":"HKS STI Stainless Steel Exhaust Manifold for 2004-07 Subaru STI - 1419-RF001","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003eHKS Subaru WRX and STI headers are fabricated of polished SUS304 stainless steel for optimal durability, feature thick flanges, and include all necessary gaskets. A heat insulator is included for additional protection. The HKS WRX and STI header is a very nice piece, but if it is more than you would like to spend, we suggest checking out our other headers that offer similar quality at a more reasonable price. This is an unequal length manifold for the WRX and STI which includes gaskets. The HKS WRX and STI exhaust manifold will bolt to a stock or stock-location uppipe.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDesigned to optimize exhaust flow while increasing spool\u003c\/li\u003e\n\u003cli\u003eImproves horsepower and torque\u003c\/li\u003e\n\u003cli\u003eImproves throttle response and reduces turbo lag\u003c\/li\u003e\n\u003cli\u003eCreates an aggressive exhaust rumble\u003c\/li\u003e\n\u003cli\u003eMaterial: 304 stainless steel\u003c\/li\u003e\n\u003cli\u003eUnequal design\u003c\/li\u003e\n\u003cli\u003eWorks with 2-bolt flange up-pipe\u003c\/li\u003e\n\u003cli\u003eIncludes gaskets and installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":48062485266650,"sku":"HKS1419-RF001","price":1400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/1419-RF001-01__31979.1721844561.1280.1280.jpg?v=1781530309"},{"product_id":"afe-twisted-steel-304-stainless-steel-long-tube-header-w-cat-for-2013-19-subaru-brz-48-36005-1hc","title":"aFe Twisted Steel 304 Stainless Steel Long Tube Header w\/ Cat for 2013-19 Subaru BRZ - 48-36005-1HC","description":"\u003ch2 style=\"text-align:center;\"\u003eTWISTED STEEL 304 STAINLESS STEEL LONG TUBE HEADER W\/ CAT\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cp\u003eDetails:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConstructed from 1-5\/8 IN Mandrel-Bent 304 Stainless Steel Tubing\u003c\/li\u003e\n\u003cli\u003eUtilizes a High Flow Catalytic Converter for Maximum Flow\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Laser Cut Machined Mild Steel Flanges are used for a Durable Leak-Free Seal\u003c\/li\u003e\n\u003cli\u003e100% TIG-Welded for Strength and Durability\u003c\/li\u003e\n\u003cli\u003eWorks with Factory Exhaust System with No Modifications Necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e1-5\/8 IN 304 Stainless Steel Construction:\u003c\/strong\u003e\u003cbr\u003eThis system is constructed of 1-5\/8 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Flow Catalytic Converter:\u003c\/strong\u003e\u003cbr\u003eIncludes a single high flow catalytic converter which is less restrictive than the factory converter providing maximum flow.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHeavy Duty Flanges:\u003c\/strong\u003e\u003cbr\u003eFactory style laser cut machined flanges are used used for a secure leak-free seal.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003cbr\u003eUtilizing factory style flanges this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eComputer-Aided Design:\u003c\/strong\u003e\u003cbr\u003eUtilizing state-of-the-art computer-aided design technology, this system is designed for custom, high tolerance factory fitment.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTIG-Welded:\u003c\/strong\u003e\u003cbr\u003e100% TIG-Welded for race-proven strength and durability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEmissions Disclaimer:\u003c\/strong\u003e\u003cbr\u003eThis product is EPA compliant, not for sale or use on vehicles certified for the state of California. Consult your state or local authority for any additional clarification. Replacement of catalytic converters (if equipped) is allowed only under the following conditions: 1) if the vehicle is missing a converter; 2) if a state or local inspection program has determined the existing converter has been lead-poisoned or damaged or otherwise needs replacement; or 3) if the vehicle is more than five (5) years old or has more than 50,000 miles and a legitimate need for replacement has been established and documented. This product only fits those vehicles as listed in the application table.\u003cbr\u003e\u003cbr\u003eaFe POWER exhaust systems are engineered and manufactured in their Corona, California facility.\u003c\/p\u003e","brand":"aFe","offers":[{"title":"Default Title","offer_id":48062493163738,"sku":"ds_BKJC_48-36005-1HC","price":1153.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/539221831af819a4410e58124f66444a__81053.1681338146.1280.1280.jpg?v=1781530376"},{"product_id":"afe-twisted-steel-304-stainless-steel-header-w-cat-for-2013-19-subaru-outback-legacy-h4-2-4l-48-36804-hc","title":"aFe Twisted Steel 304 Stainless Steel Header w\/ Cat for 2013-19 Subaru Outback\/Legacy H4-2.4L - 48-36804-HC","description":"\u003ch2 style=\"text-align:center;\"\u003eTWISTED STEEL 304 STAINLESS STEEL HEADER W\/ CAT\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cp\u003eDetails:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConstructed from 1-5\/8 IN - 2-1\/2 IN Mandrel-Bent 304 Stainless Steel Tubing\u003c\/li\u003e\n\u003cli\u003eUtilizes a single Catalytic Converter for Maximum Flow\u003c\/li\u003e\n\u003cli\u003e100% TIG-Welded for Strength and Durability\u003c\/li\u003e\n\u003cli\u003eWorks with Factory Exhaust System with No Modifications Necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e1-5\/8 IN - 2-1\/2 IN 304 Stainless Steel Construction:\u003c\/strong\u003e\u003cbr\u003eThis system is constructed of 1-5\/8 IN - 2-1\/2 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCatalytic Converter:\u003c\/strong\u003e\u003cbr\u003eIncludes a catalytic converter which is less restrictive than the factory converter providing maximum flow.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003cbr\u003eUtilizing factory style flanges this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOptimized Tube Lengths:\u003c\/strong\u003e\u003cbr\u003eTube lengths are optimized for true pulse control technology which improves flow and performance.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFormed Collector:\u003c\/strong\u003e\u003cbr\u003eFormed collectors decrease turbulence and increase exhaust velocity. The result is increased horsepower, torque and improved throttle response.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eComputer-Aided Design:\u003c\/strong\u003e\u003cbr\u003eState-of-the-art computer-aided design technology is utilized for precise vehicle fitment.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTIG-Welded:\u003c\/strong\u003e\u003cbr\u003e100% TIG-Welded for race-proven strength and durability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEmissions Disclaimer\u003c\/strong\u003e\u003cbr\u003eThis product is EPA compliant, not for sale or use on vehicles certified for the state of California. Consult your state or local authority for any additional clarification. Replacement of catalytic converters (if equipped) is allowed only under the following conditions: 1) if the vehicle is missing a converter; 2) if a state or local inspection program has determined the existing converter has been lead-poisoned or damaged or otherwise needs replacement; or 3) if the vehicle is more than five (5) years old or has more than 50,000 miles and a legitimate need for replacement has been established and documented. This product only fits those vehicles as listed in the application table.\u003c\/p\u003e","brand":"aFe","offers":[{"title":"Default Title","offer_id":48062517248218,"sku":"ds_BKJC_48-36804-HC","price":1000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/743c921f434086c671df4e8546df926c__77531.1711996094.1280.1280.jpg?v=1781530463"},{"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"},{"product_id":"invidia-22-subaru-wrx-fa24-equal-length-manifold-hs22sw4hdel","title":"Invidia 22+ Subaru WRX FA24 Equal Length Manifold - HS22SW4HDEL","description":"\u003cp\u003eInvidia 22+ Subaru WRX FA24 Equal Length Manifold\u003c\/p\u003e","brand":"Invidia","offers":[{"title":"Default Title","offer_id":48062597628122,"sku":"INVHS22SW4HDEL","price":1014.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/HS22SW4HDEL-01__23790.1760983025.1280.1280.jpg?v=1781530884"},{"product_id":"invidia-uel-manifold-exhaust-for-2022-subaru-wrx-fa24-hs22sw4hduel","title":"Invidia UEL Manifold Exhaust For 2022+ Subaru WRX FA24 - HS22SW4HDUEL","description":"\u003ch2 style=\"text-align:center;\"\u003eINVIDIA 22-UP SUBARU WRX FA24 UNEQUAL LENGTH HEADER\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eInvidia 22-Up Subaru WRX FA24 UNEQUAL Length Header\u003c\/p\u003e\u003cul\u003e\u003cli\u003ePiping Size: 50mm-60mm\u003c\/li\u003e\u003c\/ul\u003e","brand":"Invidia","offers":[{"title":"Default Title","offer_id":48062601134298,"sku":"INVHS22SW4HDUEL","price":1084.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/5912b54cab0ba90823d89524f63d9197__99788.1759339067.1280.1280.png?v=1781530902"},{"product_id":"invidia-sti-equal-length-racing-manifold-header-hs05sw1hdr-93uw","title":"Invidia STI Equal Length Racing Manifold Header - HS05SW1HDR","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003eThis is the Invidia Equal Length Race Exhaust Manifold. This type of manifold is ideal for those of you looking to surpass large horsepower figures that would otherwise be limited by the flow capacity of the factory exhaust manifold. When shooting for 600+ horsepower and beyond, this manifold can accommodate these numbers as it has been designed with a 2-bolt up-pipe flange for those of you who are upgrading to an external-style up-pipe, or it may accommodate some rotated turbo setups. Another great feature is the smooth bends as the manifold design will allow for an unobstructed flow path for the exhaust to exhale the exhaust gases as proficiently as possible for those with moderate bolt-ons.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003eEqual-length design\u003c\/li\u003e\n\u003cli\u003eDesigned with a 2-bolt up-pipe flange\u003c\/li\u003e\n\u003cli\u003eBuilt-in O2 sensor bung\u003c\/li\u003e\n\u003cli\u003eSmooth bends allow for an unobstructed flow path for the exhaust gases to exit\u003c\/li\u003e\n\u003cli\u003eIdeal for those of you looking to make big horsepower numbers with an upgraded up-pipe or rotated turbo setup\u003c\/li\u003e\n\u003cli\u003eThe equal-length design will eliminate the boxer rumble and will create an aggressive 4-cylinder race-inspired sound\u003c\/li\u003e\n\u003cli\u003eIncludes new exhaust manifold studs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Invidia","offers":[{"title":"Default Title","offer_id":48062613160154,"sku":"INVHS05SW1HDR","price":1281.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/91e7a02b-afae-4b1f-b697-09fc02334d69-800__67204.1770913121.1280.1280.jpg?v=1781530972"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/collections\/04f0cc08-2d1d-4168-9f58-6104be14020b.png?v=1781714816","url":"https:\/\/www.iagperformance.com\/collections\/engine-exhausts-headers.oembed","provider":"IAG Performance","version":"1.0","type":"link"}