{"title":"Exhaust Headers","description":"Header is another name for a tubular exhaust manifold.  Fabricated tubular manifolds generally allow higher exhaust flow than traditional cast manifolds.  They look cool, too.","products":[{"product_id":"prosport-header-and-up-pipe","title":"Prosport Header and Up-Pipe 2002-2014 WRX\/2004-2021 STI","description":"\u003cp\u003eThis high-quality WRX header\/up pipe combination is fully TIG-welded, with all-stainless steel tubing, cast stainless steel flanges, and a precision-cast collector.\u003c\/p\u003e\n\u003cp\u003eChoose from an unequal-length design, or equal-length.  The unequal-length (UEL) design means you'll still have that trademark Subaru boxer rumble. The equal length (EL) version gains you even more power, but the boxer sound will be gone.  \u003cspan\u003eNote that the \u003cstrong\u003eequal-length\u003c\/strong\u003e header will NOT fit with the stock EJ20 (2.0 liter) oil pan. You'll need an EJ25 (2.5 liter) oil pan. The unequal-length header fits either oil pan.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe equal length header will not fit the 2006-2007 WRX, and will not fit Forester XT, because of a slightly different oil cooler design.\u003c\/p\u003e\n\u003cp\u003eThe three-bolt flange connecting this WRX header to the included up pipe is designed to reduce the chance of leaks. Includes header, up pipe, and a gasket to connect the up pipe and header. Looking for heat shielding? Try our \u003ca href=\"http:\/\/www.fastwrx.com\/mavexwrkit.html\"\u003eexhaust wrap kit\u003c\/a\u003e, and\/or our \u003ca title=\"Mach V EJ Header Heat Shield\" href=\"https:\/\/www.fastwrx.com\/products\/mach-v-ej-header-heat-shield\"\u003eMach V EJ Header Heat Shield\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis Subaru exhaust header includes up pipe-to turbo studs, and one up pipe-to-header nut and bolt. (You'll re-use the other two bolts from your factory manifold.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFits all 2002-2014 Subaru WRX and 2004-2021 WRX STI.  Also fits EJ-motor turbo Legacy\/Outback and Forester models.\u003c\/p\u003e","brand":"Prosport","offers":[{"title":"Unequal Length (UEL)","offer_id":400121241,"sku":"05468","price":895.0,"currency_code":"USD","in_stock":true},{"title":"Equal Length (EL)","offer_id":434458785,"sku":"07400","price":920.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/products\/prosport_uel_header.jpg?v=1571438835"},{"product_id":"killer-b-motorsports-wrx-sti-holy-header","title":"Killer B Motorsports Holy Header 2002-2014 WRX\/2004-2021 STI","description":"\u003cp\u003eThe Killer B Motorsport Holy Header was developed using state of the art CAD software \u0026amp; simulations to determine optimal design to increase power in the mid to high RPM range. Short as possible primaries with a single secondary significantly decrease header volume allowing exhaust gas pressure to build quickly. Symmetrical 4-1 design maintains high and consistent exhaust velocity as RPMs rise. You can expect faster spool up time compared to long primary\/double secondary designs. A difference you will immediately notice in throttle response and the ability to hold more power higher into the revs.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures include:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShort Equal Length Primaries. The shortest possible length primaries you can have on an Equal Length header. Short means less header volume and quick spool up.\u003c\/li\u003e\n\u003cli\u003eSymmetrical Primary Design. All primaries have a similar tube length AND bend geometry. This keeps the pulse velocities high and consistent compared to equal length headers with different (non-symmetrical) primary tubing geometry.\u003c\/li\u003e\n\u003cli\u003eSmooth Mandrel Bends. All of the bends utilize a mandrel for smooth non-restrictive flow. Not only that, we use the largest bends possible at every location. It would be cheaper to use 2” bends everywhere, like others do, but that’s not going to give the best performance.\u003c\/li\u003e\n\u003cli\u003eThick Walled 321 Stainless Steel Construction for Long Life. 321 is alloyed with titanium, costs more, a lot more, but it’s the ideal material for high temperature turbocharged applications. Would 304 stainless work, yes, but the temperatures on our turbocharged cars can exceed the limits of 304 stainless enough to make them brittle and crack. 321 stainless steel has higher strength and toughness at elevated temperatures. It was developed by the aircraft industry specifically to address 304 stainless manifolds that were cracking. Killer B Motorsport is the only company that manufactures full 321 headers.\u003c\/li\u003e\n\u003cli\u003eHigh Heat Retention. 321 stainless steel conducts less heat than 304 stainless steel. The short primaries and properly sized secondaries also pull less heat from the exhaust gasses increasing turbine efficiency. Large tubing headers expose the exhaust gasses to more surface area transmitting more heat and reducing exhaust energy. You can also ceramic coat or wrap our headers (and keep the warranty) without exceeding the temperature range like you can with 304 stainless.\u003c\/li\u003e\n\u003cli\u003eV-Band Up-Pipe Connection. Why V-Band? Fast, easy, no gasket, no leaks, perfectly concentric alignment of tubes for no disruption of flow, what’s not to like!\u003c\/li\u003e\n\u003cli\u003eUp-Pipe included. Of course it comes with an Up-Pipe! This header was designed as a complete system. Using other up-pipes would only compromise performance, and nobody wants that.\u003c\/li\u003e\n\u003cli\u003eWeighs only 17 pounds (vs. OEM at 25 pounds)\u003c\/li\u003e\n\u003cli\u003eWorks with OEM EJ25 Oil Pans, and Killer B Motorsport Performance Aluminum Oil Pan!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNOTE! Swain Tech coating adds 8-12 weeks of lead time.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFits all 2002-2014 WRX and 2004-2021 STI, but EJ20 cars (2002-2005 WRX) will have to use an EJ25 oil pan. \u003c\/p\u003e","brand":"Killer B","offers":[{"title":"NON-coated","offer_id":39403598741592,"sku":"08413A","price":1985.0,"currency_code":"USD","in_stock":true},{"title":"Swain Tech coated","offer_id":39403598774360,"sku":"08413C","price":2445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/products\/Killer_B_header_square.jpg?v=1618845400"},{"product_id":"iag-header-and-up-pipe-2002-2014-wrx-2004-sti","title":"IAG Unequal Header and Up-Pipe 2002-2014 WRX\/2004-2021 STI","description":"\u003cp\u003e\u003cspan\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 T304 stainless steel, including cast stainless flanges! The unequal length headers feature a 45mm inner 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.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\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.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(x1) Unequal Length Header\u003c\/li\u003e\n\u003cli\u003e(x1) 3 Bolt 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\u003e\u003cb\u003eFitment Notes:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2002-05 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2006-07 WRX Requires STI Oil Cooler and STI Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe IAG Header and Up-Pipe fits all 2002-2014 WRX and 2004-2021 STI.  Also fits EJ-motor turbo Legacy\/Outback and Forester models.\u003c\/p\u003e","brand":"IAG","offers":[{"title":"Default Title","offer_id":33645549551704,"sku":"11688","price":849.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/products\/11688-2.jpg?v=1593187006"},{"product_id":"iag-header-and-up-pipe-2002-2014-wrx-2004-sti-1","title":"IAG Equal Length Header and Up-Pipe 2002-2014 WRX\/2004-2021 STI","description":"\u003cp\u003eIAG’s Equal Length Headers are the perfect way to add more performance to your Subaru WRX STI. By implementing a 4-1 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 T304 stainless steel, including cast stainless flanges! The equal length headers feature a 45mm inner 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\u003ePackage includes:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(x1) Equal Length Header\u003c\/li\u003e\n\u003cli\u003e(x1) 3 Bolt 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:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\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\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eFits all 2002-2014 Subaru WRX and 2004-2021 STI.  Also fits EJ-motor turbo Legacy\/Outback and Forester models, although some of those models will require swapping in an STI oil pan.\u003c\/p\u003e","brand":"IAG","offers":[{"title":"Default Title","offer_id":33645549682776,"sku":"11696","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/files\/IAGELheaderEJ25.jpg?v=1771335398"},{"product_id":"grimmspeed-2015-wrx-equal-length-header","title":"GrimmSpeed 2015-2021 WRX Equal Length Header","description":"\u003cp style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\"\u003eGrimmpseed's attention to detail during development and overall exhaust knowledge allow them to make the best possible upgraded version of the factory alternative. After isolating the inadequacies of the OEM exhaust manifold, They were able to create a replacement that’s leagues above: introducing the all new GrimmSpeed 2015-21 WRX Equal Length Header.\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e The result of their hard work is one of the best looking, performing and most-durable header options in the Subaru aftermarket. The exhaust runners are CNC-bent and trimmed as a single piece with no additional welds to introduce points of failure or junctions that would interrupt flow, resulting in a truly equal-length header with almost no variance in runner bend angle. This is especially important for maximizing the performance of the 2015-21 FA WRX twin scroll configuration. Their unique low restriction cast collector allows for the perfect runner spacing and angles necessary to obtain the equal bends and lengths of all the tubes. This is a major part of the GrimmSpeed Header’s ability to fit between the stock skid plate and the oil pan, while still providing the ideal performance from the rest of the design. The collector allows for more smooth and consistent flow compared to a welded variant which can have the flow interruption or structural failure that we see with other headers.\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e The header flanges are CNC-cut and faced from a 1\/2in thick piece of 304 stainless steel. This design is much thicker than OEM, to ensure perfect flange flatness. The result is greater gasket sealing and ultimately increased performance and reliability. The exhaust runners are also made from thick tubing for increased longevity and are welded both on the inside and outside of the flanges. This is an extra step in manufacturing that provides a rounded lip to improve flow from the flange through the runner.\u003c\/p\u003e\n\u003cspan style=\"color: #222222; background-color: rgba(0, 0, 0, 0); font-family: Helvetica; font-size: 14px; text-decoration: none solid #222222;\" data-mce-fragment=\"1\" data-mce-style=\"color: #222222; background-color: rgba(0, 0, 0, 0); font-family: Helvetica; font-size: 14px; text-decoration: none solid #222222;\"\u003e \u003c\/span\u003e\n\u003cp style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\"\u003eTheir header kit comes with everything necessary for install on your 2015-21 WRX, including gaskets and hardware, as well as a custom slotted J-pipe\/turbo bracket. This piece solves the OE bracket fitment issue that other aftermarket headers ignore and force you to go without, putting unneeded stress and potentially damaging your exhaust components.\u003c\/p\u003e\n\u003cspan style=\"color: #222222; background-color: rgba(0, 0, 0, 0); font-family: Helvetica; font-size: 14px; text-decoration: none solid #222222;\" data-mce-fragment=\"1\" data-mce-style=\"color: #222222; background-color: rgba(0, 0, 0, 0); font-family: Helvetica; font-size: 14px; text-decoration: none solid #222222;\"\u003e \u003c\/span\u003e\u003cspan style=\"color: #222222; background-color: rgba(0, 0, 0, 0); font-family: Helvetica; font-size: 14px; text-decoration: none solid #222222;\" data-mce-fragment=\"1\" data-mce-style=\"color: #222222; background-color: rgba(0, 0, 0, 0); font-family: Helvetica; font-size: 14px; text-decoration: none solid #222222;\"\u003e \u003c\/span\u003e\n\u003cp style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\"\u003eAll of these things come together to make The GrimmSpeed 15-21 WRX Equal Length Header not only the prettiest on the market, but at the top when it comes to performance and durability.\u003c\/p\u003e\n\u003cp style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: left; color: #222222; font-family: Helvetica; font-size: 14px; font-weight: normal; margin: 10px 0px; padding: 0px; text-size-adjust: 100%; line-height: 150%; background-color: rgba(0, 0, 0, 0); text-decoration: none solid #222222;\"\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?reload=9\u0026amp;v=XN2BjlHMv3M\"\u003eInstall Video\u003c\/a\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cspan\u003eFits all 2015-2021 Subaru WRX.\u003c\/span\u003e\u003c\/p\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":39547674624088,"sku":"13039","price":944.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/products\/13039-1.jpg?v=1628532897"},{"product_id":"perrin-2015-2021-wrx-equal-length-header","title":"Perrin Equal Length Header 2015-2021 WRX","description":"\u003cp\u003eThe Perrin FA20 turbo header drastically improves on the factory unit, producing smooth and balanced exhaust flow from the head to the turbo. This gives you the best of both worlds, with increased turbo response and more torque and horsepower through the whole power band. Instantly increase turbo response and add up to 20 whp and 20 ft-lbs of torque with the Perrin equal length header. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Perrin equal length header uses properly sized tubing that matches the Subaru exhaust port size as well as turbo inlet ports. The header to turbo flange on the Perrin equal length header allows for easy port modification to accommodate larger aftermarket turbos.\u003c\/p\u003e\n\u003cp\u003eThis header does not require an ECU tune.\u003c\/p\u003e\n\u003cp\u003eFive year warranty! Perrin Performance warrants to the original purchaser that all Perrin products will be free from defects in material and workmanship within a sixty (60) month period from the date of purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFits all 2015-2021 Subaru WRX.\u003c\/span\u003e\u003c\/p\u003e","brand":"Perrin","offers":[{"title":"Default Title","offer_id":40221966172248,"sku":"11858","price":977.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/products\/psp-ext-057_01x800_1f6b49b0-2852-4044-a2d1-22c9820ed9e5.jpg?v=1680638083"},{"product_id":"grimmspeed-unequal-header-2002-2014-wrx-2004-2021-sti","title":"Grimmspeed Unequal-Length Header 2002-2014 WRX\/2004-2021 STI","description":"\u003cp\u003e\u003cspan\u003eWhile other aftermarket unequal length headers use different runner lengths for each cylinder, GrimmSpeed's proprietary design utilizes an innovative setup where each bank of runners are equal length, but one set is 1.5 times the length of the other, providing the rumble sound that we all love while maintaining the performance of an equal length setup. GrimmSpeed utilized a single piece, mandrel bent runners to minimize disturbances to the exhaust gas along with an extremely durable cast 304 stainless steel collector to achieve keep each back of runners truly equal length which would be difficult to accomplish with a 4-into-1 welded collector. The low angle merge this collector \u003cstrong\u003emakes for faster spool and unbeatable off-boost throttle response\u003c\/strong\u003e. To match this flow, the collector features machined internal diameters to perfectly match the 1 ¾” primary runners and 2” secondary pipe, eliminating unwanted “steps” in the exhaust flow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eGrimmSpeed's unequal length header features ½ inch flanges for both the heads as well as the up-pipe side. These combined with the 14 gauge runner pipes make for extreme durability and heat retention.\u003c\/p\u003e\n\u003cp\u003eThe GrimmSpeed header out-spooled the competition’s equal length header by 50rpm while making similar boost levels. The GS UEL header produces more torque than the equal length manifold right out of the gate, producing about 15ftlbs more throughout spool up. At peak, the GrimmSpeed UEL header was able to produce an extra 2 ft\/lbs of torque and a claimed additional 21 hp compared to the equal length setup.\u003c\/p\u003e\n\u003ch3\u003eQUICK SPECS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInnovative 1.5 to 1 Unequal Length Runners \u003c\/strong\u003e- Each bank of runners is equal length, allowing for equal length performance with an unequal length sound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-into-1 Low-Angle Merge Cast Collector\u003c\/strong\u003e - Ensure minimal restriction and maximum performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth, Restriction-Free Flow Throughout\u003c\/strong\u003e – Single piece mandrel bent tubing welded to a single piece merge collector removes unwanted “steps”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstantial Power\/Torque Gains \u003c\/strong\u003e- +25hp and +25ft\/lbs of torque over stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuickest Spooling Aftermarket Header\u003c\/strong\u003e - Faster spool and more power compared to the competition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Tune Required\u003c\/strong\u003e – Safe to run, just bolt on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGaskets and Hardware Included\u003c\/strong\u003e – Everything you need to get installed and on the road\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned To Fit With Aftermarket Oil Pans\u003c\/strong\u003e - Fits with the STI oil pan or popular aftermarket options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull 304 Stainless Steel Construction\u003c\/strong\u003e - 1\/2\" flanges and 14ga runners for extreme durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactured and Welded In The USA\u003c\/strong\u003e – For consistency and top quality control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/beBBnfzFh9s?si=CBvIp-tU3dfk4jLw\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFitment Notes:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2005 Subaru WRX require STI oil cooler and STI oil pan\/oil pickup.\u003c\/li\u003e\n\u003cli\u003e2004-2008 Forester XT require STI oil cooler and STI oil pan\/oil pickup. MAY REQUIRED OTHER CUSTOMIZING.\u003c\/li\u003e\n\u003cli\u003e2006-2007 WRX requires STI oil cooler.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe GrimmSpeed unequal-length header fits all 2002-2014 WRX and 2004-2021 STI, with the fitment caveats listed above.\u003c\/p\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41542414794840,"sku":"13969","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/files\/113026_EJ-UEL-Header_2500px-5__22476.webp?v=1759760501"},{"product_id":"iag-equal-length-header-2015-2021-wrx","title":"IAG Equal Length Header 2015-2021 WRX","description":"\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\n\u003cp\u003e In 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\n\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\n\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\n\u003cp\u003eThis header does not require an ECU tune.\u003c\/p\u003e\n\u003cp\u003ePackage Includes: (x1) IAG Equal Length Manifold, (x1) Hardware Kit, (x2) Engine Port Manifold Gaskets, (x1) Turbo Port Gasket\u003c\/p\u003e\n\u003cp\u003eFits all 2015-2021 Subaru WRX.\u003c\/p\u003e","brand":"Perrin","offers":[{"title":"Default Title","offer_id":42395402109016,"sku":"14204","price":749.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/files\/IAG-EXT-1006-02__29352.1730489115.jpg?v=1731514695"},{"product_id":"perrin-equal-length-header-2022-wrx","title":"Perrin Equal Length Header 2022+ WRX","description":"\u003cp\u003eIncrease HP and TQ on your 2022-2024 WRX with a PERRIN Equal Length Header. With larger primary and secondary tubes, you can expect 5WHP on Stage 1 cars and far more on 350+ WHP cars without sacrificing turbo response.\u003c\/p\u003e\n\u003cp\u003eThe Perrin equal length header uses are designed to fit seamlessly under the OEM heat shield . Retaining the the OEM heat shield is crucial for maintaining proper oil temperatures and ensuring constant power delivery.\u003c\/p\u003e\n\u003cp\u003eThis header does not require an ECU tune.\u003c\/p\u003e\n\u003cp\u003eFive year warranty! Perrin Performance warrants to the original purchaser that all Perrin products will be free from defects in material and workmanship within a sixty (60) month period from the date of purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFits all 2022+ Subaru WRX.\u003c\/span\u003e\u003c\/p\u003e","brand":"Perrin","offers":[{"title":"Default Title","offer_id":42403142467672,"sku":"14217","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/files\/14217-1.jpg?v=1731945373"},{"product_id":"grimmspeed-2022-wrx-equal-length-header","title":"GrimmSpeed 2022+ WRX Equal Length Header","description":"\u003cp class=\"MsoNormal\"\u003eGrimmSpeed's attention to detail during development and overall exhaust knowledge allow them to make the best possible upgraded version of the factory alternative. After isolating the inadequacies of the OEM exhaust manifold, They were able to create a replacement that’s leagues above.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe result of their hard work is one of the best looking, performing and most-durable header options in the Subaru aftermarket. The runners are CNC-bent and trimmed as a single piece with no additional welds to introduce points of failure or junctions that would interrupt flow, resulting in a truly equal-length header with almost no variance in runner bend angle. This is especially important for maximizing the performance of the 2022+ FA24 WRX twin scroll configuration. Their unique low restriction 304 Stainless Steel Cast Collector allows for the perfect runner spacing and angles necessary to obtain the equal bends and lengths of all the tubes. This is a major part of the GrimmSpeed Header’s ability to fit between the stock skid plate and the oil pan\u003cstrong\u003e,\u003c\/strong\u003e while still providing the ideal performance from the rest of the design. The collector allows for more smooth and consistent flow compared to a welded variant which can have the flow interruption or structural failure that we see with other headers.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/3165\/2402\/files\/GRM113401_FA24-ELH_Install_V2.pdf?v=1730823553\"\u003eInstall Instructions\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFits all 2022+ Subaru WRX.\u003c\/span\u003e\u003c\/p\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":42436878008408,"sku":"14236","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/9175\/files\/14236-4_506b43ff-d2a5-4c11-86e2-cd1cee926c08.webp?v=1733251950"}],"url":"https:\/\/www.fastwrx.com\/collections\/exhaust-header\/gh.oembed","provider":"FastWRX.com","version":"1.0","type":"link"}