{"product_id":"gsc-power-division-stainless-steel-exhaust-valves-1mm-subaru-models-inc-2002-2014-wrx-2004-2021-sti-dc5ox9","title":"GSC Power-Division Stainless Steel Exhaust Valves +1mm - Subaru Models (inc. 2002-2014 WRX \/ 2004-2021 STI)","description":"\u003ch4\u003eHIGHLIGHTS:\u003c\/h4\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003eComplete set of exhaust valves\u003c\/li\u003e\r\n\t\u003cli\u003e+1mm in size\u003c\/li\u003e\r\n\t\u003cli\u003eStrong stainless steel construction to handle more aggressive cams and higher horsepower applications \u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ch3 align=\"center\"\u003eGSC Power-Division Stainless Steel Exhaust Valves +1mm\u003c\/h3\u003e\r\n\r\n\u003chr\u003e\r\n\u003ch4\u003eSPECS:\u003c\/h4\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e+1mm in size\u003c\/li\u003e\r\n\t\u003cli\u003eSwirl polished heads for smoother airflow over the valve\u003c\/li\u003e\r\n\t\u003cli\u003eBack cut to reduce valve weight for higher rpm, higher boost pressure and allow for more aggressive cam profiles without increasing valve spring seat pressures\u003c\/li\u003e\r\n\t\u003cli\u003eValve stems are micro-polished to allow for less oil retention on the stem which creates less drag on the stem to guide for a smoother motion.\u003c\/li\u003e\r\n\t\u003cli\u003eFully nitrated ( this includes the 45 which increases valve life and makes a better seal at the valve seat for improved cylinder pressure) also reduces carbon buildup on the backside of the valve\u003c\/li\u003e\r\n\t\u003cli\u003eIntake valves are a modified 21-4n stainless and Exhausts are a modified 23-8n stainless material for high heat capacity while maintaining longevity.\u003c\/li\u003e\r\n\t\u003cli\u003eValve tips are either hardened or have a stellite wafer tip fused so that the tip is within 5 Rockwell C of the rocker or valve tappet for extended life and less wear\u003c\/li\u003e\r\n\t\u003cli\u003eValve tip lengths. They have taken extra time to adjust tip heights on the applications to require less tipping of the valve to maintain proper tip height for proper valvetrain geometry and to cut down on install times when setting valve lash\u003c\/li\u003e\r\n\t\u003cli\u003eThey have also adjusted the Keeper grove to properly balance intake and exhaust spring pressures to reduce the use of valve spring shims and maximize performance from their spring and retainer kits\u003c\/li\u003e\r\n\t\u003cli\u003eValves will work with an OEM keeper\/lock or when available their upgraded keeper\/lock. It's not mandatory but it is suggested that any valve lock not be reused on performance applications due to material grooving\u003c\/li\u003e\r\n\t\u003cli\u003eSold as a complete set of exhaust valves\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n\r\n\u003ch4 align=\"center\"\u003eREINFORCE YOUR HEADS WITH STRONGER VALVES BROUGHT TO YOU BY GSC POWER-DIVISION \u003c\/h4\u003e\r\n\r\n\u003cp\u003eThe GSC Power-Division +1mm Stainless Steel Exhaust Valve Set have been designed using advanced 3D design simulation programs to create a stronger and higher-flowing valve head. For those of you rebuilding your heads to sustain a more aggressive cam set or to handle more power and boost, these valves make for a much stronger option needed to sustain higher power levels. \u003c\/p\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e","brand":"GSC PowerDivision","offers":[{"title":"Default Title","offer_id":45712785702998,"sku":"GSC2013-8","price":34.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/0411\/1190\/files\/hqnpueqqqa22_4754d71e-3086-4964-b420-41ca249fd648.jpg?v=1788784850","url":"https:\/\/truegearus.com\/products\/gsc-power-division-stainless-steel-exhaust-valves-1mm-subaru-models-inc-2002-2014-wrx-2004-2021-sti-dc5ox9","provider":"TrueGear","version":"1.0","type":"link"}