{"product_id":"grimmspeed-4-piston-brake-caliper-kit-for-brz-gr86-340mm-rotor-1","title":"GrimmSpeed 4-Piston Brake Caliper Kit For BRZ\/GR86 (340mm Rotor)","description":"\u003cp\u003e\u003cstrong\u003eFITS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2022+ Subaru BRZ\u003c\/li\u003e\n\u003cli\u003e2022+ Toyota GR86\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"352\" data-end=\"614\"\u003eThe stock single-piston caliper found on most Subaru platforms gets the job done — but it wasn’t designed for the kind of aggressive driving, tracking, or build evolution most GrimmSpeed drivers pursue. That’s where our\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"570\" data-end=\"604\"\u003e4-Piston Brake Caliper Kit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecomes in.\u003c\/p\u003e\n\u003cp data-start=\"616\" data-end=\"969\"\u003ePurpose-built for Subaru performance, this fixed caliper setup brings balanced stopping power, improved heat management, and consistent pedal feel to your favorite chassis. Designed in-house and tested under real-world conditions, the system offers a true performance solution — with no need to chase down used Brembos or deal with custom brackets.\u003c\/p\u003e\n\u003cp data-start=\"971\" data-end=\"1380\"\u003eEach kit is application-specific, pairing our forged aluminum calipers with the correct rotor and bracket configuration for your setup. Calipers are available in your choice of\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1148\" data-end=\"1155\"\u003eRed\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1159\" data-end=\"1189\"\u003eGunmetal Gray anodized finishes\u003c\/strong\u003e, both designed to withstand heat and resist corrosion while delivering a clean, motorsports-ready look. From street builds to track cars, this is the braking confidence your Subaru deserves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eForged 6061-T6 Aluminum Caliper Body – 2-piece design, hard anodized for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eDual Piston Setup – 44mm primary and 41mm secondary pistons provide even pad pressure and reduced taper\u003c\/li\u003e\n\u003cli\u003eHeat-Managed Pistons – Type 3 hard anodized and vented for superior thermal performance\u003c\/li\u003e\n\u003cli\u003eLightweight Design – Approximately 9.9 lbs per corner with bracket and hardware\u003c\/li\u003e\n\u003cli\u003ePad Compatibility – FMSI D1001 or D968 (varies by application)\u003c\/li\u003e\n\u003cli\u003eRotor Compatibility – Works with commonly available Subaru OEM and STI rotors\u003c\/li\u003e\n\u003cli\u003eNo Brake Lines Required – Compatible with factory lines (new lines may be recommended depending on vehicle)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(2) GrimmSpeed 4-Piston Brake Calipers (choose Red or Gunmetal)\u003c\/li\u003e\n\u003cli\u003e(2) Vehicle-Specific Billet 4140 Steel Caliper Brackets\u003c\/li\u003e\n\u003cli\u003eFull Hardware Kit:\n\u003cul\u003e\n\u003cli\u003eBridge bolts\u003c\/li\u003e\n\u003cli\u003eBanjo bolts\u003c\/li\u003e\n\u003cli\u003eCrush washers\u003c\/li\u003e\n\u003cli\u003eBleeder dust caps\u003c\/li\u003e\n\u003cli\u003eCaliper guide pins\u003c\/li\u003e\n\u003cli\u003eSecurity cotter pins\u003c\/li\u003e\n\u003cli\u003eCaliper spring bridges + bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrintable 1:1 Fitment Template\u003c\/li\u003e\n\u003cli\u003eInstall Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSubaru BRZ\u003c\/li\u003e\n\u003cli\u003eToyota GR86\/FRS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRotor Size: 340mm\u003c\/p\u003e\n\u003cp\u003ePad Type: F40 (FMSI D968)\u003c\/p\u003e\n\u003cp\u003eDesigned for use with OEM-style hubs and rotors — no knuckle swaps or custom adapters required.\u003c\/p\u003e","brand":"GrimmSpeed","offers":[{"title":"Gray","offer_id":51463507673376,"sku":null,"price":1299.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":51463507706144,"sku":null,"price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/6883\/0752\/files\/Screenshot2025-08-28at3.11.24PM.png?v=1756408609","url":"https:\/\/axionperformanceparts.com\/products\/grimmspeed-4-piston-brake-caliper-kit-for-brz-gr86-340mm-rotor-1","provider":"Axion Performance Parts","version":"1.0","type":"link"}