{"product_id":"act-heavy-duty-race-rigid-4-pad-clutch-kit-2004-2021-subaru-wrx-sti-sb10-hdr4","title":"ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | 2004-2021 Subaru WRX\/STi (SB10-HDR4)","description":"\u003cdiv id=\"newdescr\"\u003e\n\u003cdiv id=\"newdescrRC\"\u003e\n\u003ch2 style=\"font-size:1.3rem;\"\u003eACT 2004-2021 Subaru WRX STI \/ Legacy Spec.B HD-M\/Race Rigid 4 Pad Clutch Kit\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eSB10-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.\u003c\/p\u003e\n\u003cp align=\"justify\"\u003eMonoloc is a one-piece, direct replacement or upgrade to the standard, two-piece wedge collar and wire ring featured in pull-type clutches. The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance. It provides uniform loading on the bearing and pressure plate to assure proper alignment, regardless of driver influence or vehicle modifications. Monoloc's hardened chrome-moly steel construction will provide years of service.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTorque Capacity (ft\/lbs.): 660\u003c\/li\u003e\n\u003cli\u003eLight to moderate pedal effort, aggressive engagement, increased gear rattle, confidence during hard shifts\u003c\/li\u003e\n\u003cli\u003eModerate friction life, extended by ACT's exclusive diaphragm design, dramatic improvement in release mechanism life, rigid design may increase spline wear\u003c\/li\u003e\n\u003cli\u003eCarefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance, major improvement in release mechanism\u003c\/li\u003e\n\u003cli\u003eRecommended for race use only\u003c\/li\u003e\n\u003cli\u003e100% clamp load tested and dynamically computer balanced for smooth high RPM reliability, includes ACT's patented Monoloc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"newdescrLC\"\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2004-2021 Subaru WRX STI\u003c\/li\u003e\n\u003cli\u003e2007-2009 Subaru Legacy GT spec.B (see * below)\u003c\/li\u003e\n\u003cli\u003e*240mm\u003c\/li\u003e\n\u003cli\u003e*6 speed applications only\u003c\/li\u003e\n\u003cli\u003e*Must use ACT or factory flywheel for the 2004 and newer WRX STi\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's in the box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4240018 - 4 Pad Rigid Race Disc\u003c\/li\u003e\n\u003cli\u003eAT90 - Alignment Tool\u003c\/li\u003e\n\u003cli\u003ePB1004 - Pilot Bearing\u003c\/li\u003e\n\u003cli\u003eRB601 - Release Bearing\u003c\/li\u003e\n\u003cli\u003eSB019 - P\/PL-M Heavy Duty Pressure Plate\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/6136\/files\/ACT_INSTALL_INSTR_8x11e.pdf?17982081208183317524\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstallation Instructions!\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDescription: HD-M\/Race Rigid 4 Pad\u003c\/li\u003e\n\u003cli\u003eTorque Capacity (ft\/lbs.): 660\u003c\/li\u003e\n\u003cli\u003eTorque Capacity Over OE: 86%\u003c\/li\u003e\n\u003cli\u003eDisc Type: Race Disc\u003c\/li\u003e\n\u003cli\u003eSpline Count: 24\u003c\/li\u003e\n\u003cli\u003eSpline Size (in.): 1\u003c\/li\u003e\n\u003cli\u003eDisc Diameter (in.): 9.4\u003c\/li\u003e\n\u003cli\u003eDisc Diameter (mm.): 240\u003c\/li\u003e\n\u003cli\u003ePressure Plate Type: Heavy Duty\u003c\/li\u003e\n\u003cli\u003eProduct Weight (lbs.): 15.9\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clear\"\u003e\u003c\/div\u003e","brand":"ACT Clutch Kits \u0026 Flywheels","offers":[{"title":"Default Title","offer_id":31957727707209,"sku":"ACT SB10-HDR4","price":944.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1639\/5151\/products\/ACT-Heavy-Duty-Race-Rigid-4-Pad-Clutch-Kit-2004-2021-Subaru-WRXSTi-SB10-HDR4.jpg?v=1744488011","url":"https:\/\/www.mobileigo.com\/en-au\/products\/act-heavy-duty-race-rigid-4-pad-clutch-kit-2004-2021-subaru-wrx-sti-sb10-hdr4","provider":"mobileiGo.com","version":"1.0","type":"link"}