{"product_id":"manley-00-03-subaru-wrx-ej20-04-sti-exhaust-33mm-stainless-extreme-duty-valve-1-valve","title":"Manley Extreme Duty Exhaust Valve (EJ20, 33mm, Stainless, Single) - 2002-2012 Subaru WRX \/ 2004-2012 Subaru STI","description":"\u003cul\u003e\n\u003cli\u003eExtreme Duty Series exhaust valve, stainless steel\u003c\/li\u003e\n\u003cli\u003eProven in Top Fuel, Funny Car, and circle track racing\u003c\/li\u003e\n\u003cli\u003eBuilt for the most demanding professional racing applications\u003c\/li\u003e\n\u003cli\u003eAvailable as single valve or full set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnology Proven in the Most Extreme Motorsports\u003c\/h3\u003e\n\u003cp\u003eManley's Extreme Duty Series Valves are engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors. That's about as demanding a proving ground as exists in motorsports, and the material science and construction that comes out of it directly benefits this valve's application on a turbocharged Subaru. These valves are your ticket to genuinely unparalleled performance rather than a repackaged standard valve. That's the kind of detail that separates genuine engineering from a basic replacement part.\u003c\/p\u003e\n\n\u003ch3\u003eExtraordinary Capability Brought to a Street-Built Engine\u003c\/h3\u003e\n\u003cp\u003eBringing this level of engineering to an EJ20-based build means access to valve technology that most street car parts catalogs simply don't offer. That's a meaningful upgrade for anyone building an engine that needs to survive genuinely extreme conditions, whether that's sustained high boost, high RPM, or repeated hard track use. It's the kind of valve you choose when failure isn't an acceptable outcome. It's a small distinction that makes a real difference once you're actually building the engine.\u003c\/p\u003e\n\n\u003ch3\u003eStraight From Subispeed\u003c\/h3\u003e\n\u003cp\u003eGenuinely extreme-duty valve technology for 2002-2012 WRX \/ 2004-2012 STI, proven in some of the most demanding motorsports applications that exist.\u003c\/p\u003e\n\n\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2012\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2012\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eSTI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eThis is the 33mm head diameter, sold as a single valve.\u003c\/em\u003e\u003c\/p\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":53062412632353,"sku":"MAN11139-1","price":68.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/9029\/2257\/files\/fec5f7dba71aff461c53f7b003c4211fL_d66b624c-6359-4779-93fb-78df1b08194f.jpg?v=1784694873","url":"https:\/\/www.subispeed.com\/products\/manley-00-03-subaru-wrx-ej20-04-sti-exhaust-33mm-stainless-extreme-duty-valve-1-valve","provider":"SubiSpeed","version":"1.0","type":"link"}