{"product_id":"gsc5073-ej-wrx-sti-valve-spring-kit-conical-hp","title":"GSC EJ WRX\/STi Conical High Pressure Valve Spring Kit (5073)","description":"GSC Power-Division high pressure conical valve spring kit for the EJ WRX and STi includes 16 titanium retainers, 16 conical valve springs and 16 chromoly valve spring seats. High RPM and high boost levels are not a problem on these kits. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003eEJ20\/EJ25\u003cbr\u003e2002-2014 Subaru WRX\u003cbr\u003e2004-2021 Subaru STi\u003cbr\u003e\u003cbr\u003e• 109lbs @ 1.303\" install height \u003cbr\u003e• 259lbs @ 0.850\"\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(16) Titanium Retainers\u003cbr\u003e(16) Conical HP Valve Springs\u003cbr\u003e(16) Chromoly Valve Spring Seats\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore Info:\u003c\/span\u003e\u003cbr\u003eTrue conical valve springs are not a new concept and are industry proven to provide several key advantages over traditional spring designs. A major advantage of conical springs vs. traditional cylindrical or beehive springs is the damping and removal of valvetrain harmonics.\u003cbr\u003e\u003cbr\u003eOf the three designs, conical springs are the front runners in valvetrain harmonic stability. Utilizing a varying coil diameter as well as coil spacing, a conical spring acts as a natural harmonic damper in the transfer of valvetrain shock. This translates to less stress, less wear, and a longer life of the included components.\u003cbr\u003e\u003cbr\u003eThis level of protection is needed in today’s engines being pushed to their physical and mechanical limits by aftermarket modifications. Every GSC conical spring offers a super finished surface treatment to go along with the patented, multi-step heat treatment process. The finished product is an extremely reliable, high-performance spring allowing the users to push higher RPMs, use more aggressive cam profiles, and turn up higher boost pressures.\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eGSC5073\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eSprings:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eHP Conical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eRetainers:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eTitanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eCoil Bind:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.818\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eInstall Height:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e1.303\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eSeat Pressure:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e109 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOpen Pressure, 11.50mm Lift:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e259lbs @ 0.850\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eMaximum Valve Lift:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.453\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eMax RPM:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e10,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eMax Boost:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e40 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ca href=\"https:\/\/stmtuned.com\/collections\/gsc-power-division-products\" style=\"color: #afafaf;\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more GSC Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"GSC","offers":[{"title":"Default Title","offer_id":50562770436438,"sku":"GSC-5073","price":574.31,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/GSC5073-ej-wrx-sti-valve-spring-kit-conical-hp.jpg?v=1749204585","url":"https:\/\/www.speed-addicts.com\/en\/products\/gsc5073-ej-wrx-sti-valve-spring-kit-conical-hp","provider":"Speed Addicts","version":"1.0","type":"link"}