{"product_id":"hawk-hb928c-644-hpx-front-brake-pads-2020-2022-ford-mustang-gt500","title":"Hawk Performance 2021 Ford Mustang GT500 Front HPX Motorsports Brake Pads","description":"\u003ch4\u003eTrack-Grade Front Braking for the Supercharged Shelby GT500\u003c\/h4\u003e\n\u003cp\u003eDelivering over 700 horsepower from a supercharged 5.2-liter V8, the Ford Mustang Shelby GT500 demands a brake pad compound that keeps pace under sustained track stress. Hawk Performance part number HB928C.644 uses the HPX motorsports compound on the front axle of the 2020 through 2022 Shelby GT500, providing smooth initial bite and clean modulation that lets drivers precisely modulate the pedal when braking from triple-digit speeds. The HPX compound is not street-rated and is intended for authorized track and race events only.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHPX compound code \"C\" medium torque, medium temperature race friction material\u003c\/li\u003e\n\u003cli\u003eOptimal temperature range: 100 to 600 degrees F; operating range: 100 to 700 degrees F\u003c\/li\u003e\n\u003cli\u003ePredictable smooth initial bite for confident threshold braking in the GT500\u003c\/li\u003e\n\u003cli\u003eValidated on Hawk Performance's dynamometer program and confirmed for HB928C.644 front fitment\u003c\/li\u003e\n\u003cli\u003eEngineered to mate directly with the factory Brembo six-piston front calipers on the 2020-2022 GT500\u003c\/li\u003e\n\u003cli\u003eNot compatible with carbon ceramic rotors; designed for iron or steel rotors only\u003c\/li\u003e\n\u003cli\u003eMotorsport configuration no shims included\u003c\/li\u003e\n\u003cli\u003eHawk Performance limited lifetime warranty on HB928C.644\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOne set of Hawk HPX front brake pads (HB928C.644) for the 2020-2022 Ford Mustang Shelby GT500\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRaise the vehicle and secure on jackstands; remove front wheels.\u003c\/li\u003e\n\u003cli\u003eRemove caliper mounting bolts and slide the caliper off the rotor. Suspend with wire do not stress the brake hose.\u003c\/li\u003e\n\u003cli\u003eRemove the old pads and clean the pad abutment surfaces on the caliper bracket.\u003c\/li\u003e\n\u003cli\u003eCompress the front caliper pistons with a C-clamp or piston compressor tool.\u003c\/li\u003e\n\u003cli\u003eInstall the new HB928C.644 HPX pads; confirm proper seating in the caliper carrier.\u003c\/li\u003e\n\u003cli\u003eReinstall the caliper and torque the mounting bolts per the Ford GT500 factory specification.\u003c\/li\u003e\n\u003cli\u003eReinstall wheels, torque lug nuts, and pump the brake pedal to move pistons into contact with the new pads.\u003c\/li\u003e\n\u003cli\u003ePerform the Hawk bed-in procedure on track before full-load braking events.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eSpecs\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003eHB928C.644\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHAWKHB928C.644\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e840653057903\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompound\u003c\/td\u003e\n\u003ctd\u003eHPX (Code C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Thickness\u003c\/td\u003e\n\u003ctd\u003e0.644 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal Temp Range\u003c\/td\u003e\n\u003ctd\u003e100 to 600 degrees F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Operating Temp\u003c\/td\u003e\n\u003ctd\u003e700 degrees F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque Level\u003c\/td\u003e\n\u003ctd\u003eLow to Medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStreet Legal\u003c\/td\u003e\n\u003ctd\u003eNo motorsports use only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShims Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Compatibility\u003c\/td\u003e\n\u003ctd\u003eIron \/ steel rotors only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited lifetime (Hawk Performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel \/ Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT500 Front\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT500 Front\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT500 Front\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eDoes HB928C.644 fit the standard Mustang GT or GT350 front calipers?\u003c\/strong\u003e\u003cbr\u003eNo. The HB928C.644 is designed specifically for the Brembo six-piston front caliper fitted to the 2020-2022 Shelby GT500. GT and GT350 models use different pad shapes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat compound code is \"C\" in the part number HB928C.644?\u003c\/strong\u003e\u003cbr\u003eThe letter C designates the HPX friction compound, indicating a medium torque, medium temperature motorsports material with clean modulation characteristics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I drive the GT500 home from a track day on HB928C.644 pads?\u003c\/strong\u003e\u003cbr\u003eThese pads are not street-rated and will perform poorly at low street temperatures. For mixed street and track use, consider Hawk's HP Plus (N code) compound instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the pad thickness dimension in HB928C.644?\u003c\/strong\u003e\u003cbr\u003eThe thickness dimension is 0.644 inches, encoded directly in the Hawk part number system after the compound code letter C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a bed-in procedure required?\u003c\/strong\u003e\u003cbr\u003eYes. Proper heat cycling of HB928C.644 on track is mandatory before hard stops. Follow Hawk's published bed-in sequence of progressive brake applications with full cool-down intervals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre shims included with HB928C.644?\u003c\/strong\u003e\u003cbr\u003eNo. Hawk motorsports pad sets do not include shims, consistent with race-use configuration standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these pads increase brake noise at low speeds?\u003c\/strong\u003e\u003cbr\u003eYes. Race compounds like HPX typically produce more noise and dust at sub-optimal temperatures, which is normal behavior for motorsports friction materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the HB928C.644 pads work with the GT500's electronic brake booster?\u003c\/strong\u003e\u003cbr\u003eYes. These pads install in the existing caliper and work with all OEM brake actuation systems, including the GT500's electronic brake booster, without modification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProposition 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hawk Performance","offers":[{"title":"Default Title","offer_id":45968416768079,"sku":"HAWKHB928C.644","price":271.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/hawk-hb928c-644-hpx-front-brake-pads-mustang-gt500.png?v=1782420496","url":"https:\/\/www.blackopsautoworks.com\/products\/hawk-hb928c-644-hpx-front-brake-pads-2020-2022-ford-mustang-gt500","provider":"Black Ops Auto Works","version":"1.0","type":"link"}