{"product_id":"act-heavy-duty-sprung-4-puck-disc-clutch-kit-2004-2018-sti-2007-2009-lgt-spec-b","title":"ACT Heavy Duty Race Sprung 4 Pad Clutch 2004-2021 STI \/ 2007-2009 Legacy GT Spec B","description":"\u003cp\u003eThe SB10-HDG4 kit combines ACT’s Heavy Duty pressure plate with a 4-pad spring-centered race disc for high-performance applications. The diaphragm-style pressure plate increases clamp load, reduces deflection, and maximizes clutch life. The 4-pad spring-centered disc damps torsional vibrations for quieter operation and resists failure under harsh conditions. Engagement is harsher, but shifting is faster. The 4-pad spring-centered disc is well-suited for smaller disc sizes and smaller engines. Monoloc provides a one-piece direct replacement or upgrade to the standard two-piece wedge collar and wire ring, ensuring uniform bearing and pressure plate loading for proper alignment and long-term reliability.\u003c\/p\u003e \u003cp\u003e\u003cstrong data-start=\"887\" data-end=\"896\"\u003eSpecs\u003c\/strong\u003e\u003c\/p\u003e \u003cul data-start=\"899\" data-end=\"1126\"\u003e \u003cli data-start=\"899\" data-end=\"948\"\u003e \u003cstrong data-start=\"901\" data-end=\"921\"\u003eTorque Capacity:\u003c\/strong\u003e 668 ft\/lbs (88% over OE)\u003c\/li\u003e \u003cli data-start=\"949\" data-end=\"979\"\u003e \u003cstrong data-start=\"951\" data-end=\"969\"\u003eDisc Material:\u003c\/strong\u003e Ceramic\u003c\/li\u003e \u003cli data-start=\"980\" data-end=\"1018\"\u003e \u003cstrong data-start=\"982\" data-end=\"1000\"\u003eDisc Diameter:\u003c\/strong\u003e 9.4 in \/ 240 mm\u003c\/li\u003e \u003cli data-start=\"1019\" data-end=\"1053\"\u003e \u003cstrong data-start=\"1021\" data-end=\"1046\"\u003eInput Shaft Diameter:\u003c\/strong\u003e 1 in\u003c\/li\u003e \u003cli data-start=\"1054\" data-end=\"1093\"\u003e \u003cstrong data-start=\"1056\" data-end=\"1080\"\u003ePressure Plate Type:\u003c\/strong\u003e Heavy Duty\u003c\/li\u003e \u003cli data-start=\"1094\" data-end=\"1126\"\u003e \u003cstrong data-start=\"1096\" data-end=\"1115\"\u003eProduct Weight:\u003c\/strong\u003e 17.2 lbs\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong data-start=\"1128\" data-end=\"1159\"\u003ePerformance Characteristics\u003c\/strong\u003e\u003c\/p\u003e \u003cul data-start=\"1162\" data-end=\"1788\"\u003e \u003cli data-start=\"1162\" data-end=\"1284\"\u003e \u003cstrong data-start=\"1164\" data-end=\"1173\"\u003eFeel:\u003c\/strong\u003e Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle, confidence during hard shifts\u003c\/li\u003e \u003cli data-start=\"1285\" data-end=\"1415\"\u003e \u003cstrong data-start=\"1287\" data-end=\"1296\"\u003eLife:\u003c\/strong\u003e Moderate friction life, extended by ACT’s exclusive diaphragm design, dramatic improvement in release mechanism life\u003c\/li\u003e \u003cli data-start=\"1416\" data-end=\"1594\"\u003e \u003cstrong data-start=\"1418\" data-end=\"1430\"\u003eQuality:\u003c\/strong\u003e Precisely assembled, accurately balanced, uses ceramic friction materials for high heat tolerance and maximum performance, major improvement in release mechanism\u003c\/li\u003e \u003cli data-start=\"1595\" data-end=\"1654\"\u003e \u003cstrong data-start=\"1597\" data-end=\"1617\"\u003eRecommended Use:\u003c\/strong\u003e High horsepower street or race use\u003c\/li\u003e \u003cli data-start=\"1655\" data-end=\"1788\"\u003e \u003cstrong data-start=\"1657\" data-end=\"1676\"\u003eACT Difference:\u003c\/strong\u003e 100% clamp load tested, dynamically balanced for smooth high RPM reliability, includes ACT’s patented Monoloc\u003c\/li\u003e \u003c\/ul\u003e","brand":"ACT","offers":[{"title":"Default Title","offer_id":50501056823582,"sku":"actSB10-HDG4","price":1207.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/6730\/2174\/files\/act-heavy-duty-sprung-4-puck-disc-clutch-kit-2004-2021-sti-2007-2009-lgt-spec-b-sb10-hdg4-686053.jpg?v=1768061251","url":"https:\/\/subistyle.ca\/products\/act-heavy-duty-sprung-4-puck-disc-clutch-kit-2004-2018-sti-2007-2009-lgt-spec-b","provider":"Subistyle","version":"1.0","type":"link"}