{"product_id":"grimmspeed-head-gasket-set-1-1mm-subaru-08-21-sti-ej25b-davcs-124004","title":"Grimmspeed Head Gasket Set [1.1mm] - Subaru 08-21 STI [EJ25B DAVCS] - 124004","description":"\u003cp dir=\"ltr\"\u003eGrimmSpeed has set the standard for quality when it comes to aftermarket replacement gaskets so it’s only natural that we should offer our fans the MOST important gaskets their car will ever need: Introducing The GrimmSpeed EJ25 Head Gasket Sets! \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eFeature-packed, these gaskets are a perfect fit for any engine build, from basic refresh to a high horsepower track monster. \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe GrimmSpeed Head Gaskets feature a multi-layer steel (MLS) construction, in which multiple grades are used to provide optimal surface and combustion chamber sealing as they are torqued down. The top and bottom layers feature a Nitrile Rubberized Coating that helps accommodate a rougher RA surface finish of up to 50microinch. This acts to better seal the non-critical areas of the gasket. In addition, the gasket edge includes a folded stopper layer that allows for optimal sealing for the combustion chamber. This is done to help reduce the chances of combustion gasses causing head gasket failures under extremely high cylinder pressures that built engines can experience.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAfter talking to numerous engine builders\/tuners it was clear that creating a variety of gasket thicknesses was key for pairing them with the right build. With that in mind, we’ve made the gaskets available in multiple thicknesses (.78, 1.1, 1.5mm) to help fine tune each individual build. In addition, the slightly oversized bore diameters will allow for up to 0.5mm overbore.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe EJ specific gaskets include enlarged center head bolt holes to accommodate up to a 13mm head studs. This is a popular upgrade option for many higher power builds, where additional cylinder head clamping force is needed.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eWe’ve outdone ourselves this time, The GrimmSpeed Head Gaskets carry on the legacy of \u003cstrong\u003equality\u003c\/strong\u003e that you’ve come to know from our other extremely popular gaskets.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eQuick Specs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold as a Set\/Pair - \u003c\/strong\u003eSingle and Dual AVCS fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDie Cut Multi-Layer [Stainless] \u003c\/strong\u003e\u003cstrong\u003eSteel (MLS) Construction\u003c\/strong\u003e - Provides smooth edge finish and consistency from batch to batch, ±0.001” manufacturing tolerance\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFolded Stopper Layer to Better Seal the Combustion Chamber\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e.25micron Nitrile Rubber Layer Coating\u003c\/strong\u003e - Reduces chances of leaking on imperfectly smooth mating surfaces over non-coated gasket. \u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAccommodates up to 100.0mm bore\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompatible with up to 13mm, ½” studs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAvailable in 0.78mm, 1.1mm and 1.5mm thickness (after crushing)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cb\u003eFitment:\u003cbr\u003e \u003c\/b\u003e08-14 Subaru Impreza WRX STI 2.5 Turbo EJ257\u003cbr\u003e 15-21 Subaru WRX STI 2.5 Turbo EJ257\u003c\/p\u003e","brand":"Grimmspeed","offers":[{"title":"Default Title","offer_id":40053479178326,"sku":"GRM124004","price":149.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0259\/7856\/8790\/products\/022000_EJ25_0.78_04_800px__16634.1582829292.jpg?v=1744209999","url":"https:\/\/nipponpower.com\/products\/grimmspeed-head-gasket-set-1-1mm-subaru-08-21-sti-ej25b-davcs-124004","provider":"Nippon Power","version":"1.0","type":"link"}