{"product_id":"grimmspeed-up-pipe-subaru-2004-sti-2002-wrx-2005-legacy-gt-2009-forester-xt-ej-003001","title":"Grimmspeed Up Pipe | Subaru 2004+ STI \/ 2002+ WRX \/ 2005+ Legacy GT \/ 2009+ Forester XT | EJ | 003001","description":"\u003ch2\u003eGrimmspeed Up Pipe – Subaru EJ | 2004+ STI \/ 2002+ WRX \/ 2005+ Legacy GT \/ 2009+ Forester XT\u003c\/h2\u003e\n\u003cp\u003eEliminate one of the most significant exhaust flow restrictions on your EJ-powered Subaru with the Grimmspeed Up Pipe. The factory up pipe — the section of exhaust connecting the turbocharger to the downpipe — is a well-known restriction point on the EJ platform, with a restrictive catalytic converter and suboptimal geometry that limits exhaust flow and turbo spool. Grimmspeed's up pipe replaces the factory unit with a free-flowing design engineered to reduce exhaust backpressure, improve turbo spool, and support higher power levels across the EJ WRX, STI, Legacy GT, and Forester XT platforms.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Factory Up Pipe Restriction:\u003c\/strong\u003e Replaces the restrictive factory up pipe and its integrated catalytic converter — a well-known exhaust flow bottleneck on the EJ platform — with a free-flowing alternative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Turbo Spool:\u003c\/strong\u003e Reduced exhaust backpressure improves turbo spool response for faster boost build and improved power delivery across the RPM range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad EJ Platform Coverage:\u003c\/strong\u003e Fits the EJ-powered Subaru WRX (2002+), WRX STI (2004+), Legacy GT (2005+), and Forester XT (2009+) — one of the most widely compatible up pipe upgrades for the EJ family\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrimmspeed Quality:\u003c\/strong\u003e Manufactured by Grimmspeed — a trusted name in Subaru performance parts with a proven track record on the WRX and STI platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: Up Pipe\u003c\/li\u003e\n\u003cli\u003eEngine: Subaru EJ (EJ205 \/ EJ255 \/ EJ257)\u003c\/li\u003e\n\u003cli\u003eFitment: 2004+ Subaru WRX STI \/ 2002+ Subaru WRX \/ 2005+ Subaru Legacy GT \/ 2009+ Subaru Forester XT\u003c\/li\u003e\n\u003cli\u003ePart Number: 003001\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Up pipe replacement removes the factory catalytic converter — intended for off-road and motorsport use only. Not legal for street use in emissions-controlled jurisdictions. An ECU tune is strongly recommended after installation to optimize for the improved exhaust flow. Professional installation by an experienced Subaru shop is recommended.\u003c\/p\u003e","brand":"Grimmspeed","offers":[{"title":"Default Title","offer_id":51231533891751,"sku":"003001","price":183.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/8344\/1063\/files\/Grimmspeed003001.jpg?v=1787068242","url":"https:\/\/www.straightsiximports.com\/en-us\/products\/grimmspeed-up-pipe-subaru-2004-sti-2002-wrx-2005-legacy-gt-2009-forester-xt-ej-003001","provider":"Straight Six Imports","version":"1.0","type":"link"}