{"product_id":"ati-super-damper-crank-pulley-for-4b11-evo-x","title":"ATI Super Damper Crank Pulley for 4B11 Evo X","description":"The ATI Super Damper for Evo X is available in two versions. The \"Street\" version offers a 3% under-drive for improved dampening and increased power and is a direct OEM replacement. The \"Race\" version offers a larger diameter and no belt drives.\u003cbr\u003e\u003cbr\u003eUnlike unbalanced underdrive pulleys, which offer no protection to high performance engines, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations. The 3 external bolts allow for the mounting of A.R.E.'s dry sump mandrel to the damper (A.R.E. p\/n 2750B).The ATI damper comes with 360° laser-etched timing marks and exceeds SFI 18.1 Safety Certification.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2008-2015 Evolution X 4B11\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eDamper:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eDiameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWeight:\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eStreet Version\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e918253\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.67\" (OEM Size)\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e6.00 pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eRace Version\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e918254\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e7.07\"\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e6.15 pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• High horsepower street \u0026amp; race versions\u003cbr\u003e• Dampens torsional crankshaft vibrations at all RPM levels\u003cbr\u003e• Protects against engine harmonics\u003cbr\u003e• Street Version: Direct replacement for the stock OEM damper\u003cbr\u003e• Street Version: 5.67\" Diameter 3% Overdriven belt drive\u003cbr\u003e• Race Version: 7.07\" Diameter, no belt drives\u003cbr\u003e• Laser-etched timing marks\u003cbr\u003e• SFI 18.1 Certified for competition use\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecs:\u003c\/span\u003e\u003cbr\u003e• Shell Material: Aluminum\u003cbr\u003e• Hub Material: Steel 1.0988\" Bore\u003cbr\u003e• Inertia Weight: 2.24 lbs\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1893\/9911\/files\/918253-918254-ati-super-dampers-4b11-evo-x-street-vs-race_1024x1024.jpg?v=1643207105\" alt=\"ATI Super Dampers for Evo X (Street vs Race)\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1893\/9911\/files\/918253-918254-ati-super-dampers-4b11-evo-x-street-vs-race_1024x1024.jpg?v=1643207105\"\u003e\u003cbr\u003e\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/ati-damper-products\"\u003e\u003cimg src=\"https:\/\/stmbuilt.com\/authorized_retailer\/ati_dampers.jpg\" alt=\"Buy ATI Dampers at STM!\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more ATI Dampers\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"DIAMOND STAR MOTORSPORTS","offers":[{"title":"Street (918253)","offer_id":46373842026654,"sku":"ATID-918253","price":372.23,"currency_code":"USD","in_stock":true},{"title":"Race (918254)","offer_id":46373842059422,"sku":"ATID-918254","price":378.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/6356\/1374\/files\/918253-ati-super-damper-4b11-evo-x-street-1.jpg?v=1767633714","url":"https:\/\/diamondstarmotorsports.com\/products\/ati-super-damper-crank-pulley-for-4b11-evo-x","provider":"DIAMOND STAR MOTORSPORTS","version":"1.0","type":"link"}