{"product_id":"spool-performance-atc-13-stage-2-transfer-case-diy-kit","title":"Spool Performance ATC-13 Stage 2 Transfer Case DIY Kit","description":"\u003ch2 data-section-id=\"j5qj0g\" data-start=\"115\" data-end=\"172\"\u003eSpool Performance ATC-13 Stage 2 Transfer Case DIY Kit\u003c\/h2\u003e\n\u003cp data-start=\"174\" data-end=\"364\"\u003eThe ATC-13 transfer case is a known weak point once you start pushing real power. The factory design simply isn’t built to handle sustained torque, aggressive launches, or high-load driving.\u003c\/p\u003e\n\u003cp data-start=\"366\" data-end=\"395\"\u003eThis kit fixes that—properly.\u003c\/p\u003e\n\u003cp data-start=\"397\" data-end=\"785\"\u003eAt the core of the upgrade is a fully redesigned billet hub machined from \u003cstrong data-start=\"471\" data-end=\"485\"\u003e4340 steel\u003c\/strong\u003e, then \u003cstrong data-start=\"492\" data-end=\"522\"\u003ecase hardened and nitrided\u003c\/strong\u003e to deliver exceptional surface hardness while maintaining core toughness. The \u003cstrong data-start=\"601\" data-end=\"654\"\u003emain spline engagement surface has been optimized\u003c\/strong\u003e, increasing contact stability and reducing wear under high torque conditions—addressing one of the most common OEM failure points.\u003c\/p\u003e\n\u003cp data-start=\"787\" data-end=\"808\"\u003eWe didn’t stop there.\u003c\/p\u003e\n\u003cp data-start=\"810\" data-end=\"1152\"\u003eThe internal oiling system has been completely reworked with \u003cstrong data-start=\"871\" data-end=\"897\"\u003eCFD-optimized pathways\u003c\/strong\u003e, improving both \u003cstrong data-start=\"914\" data-end=\"969\"\u003elubrication and oil evacuation for cooling purposes\u003c\/strong\u003e. This allows for more consistent fluid distribution, reduced heat buildup, and improved durability during extended high-load operation—where the factory design typically falls short.\u003c\/p\u003e\n\u003cp data-start=\"1154\" data-end=\"1487\"\u003eClutch capacity is increased from \u003cstrong data-start=\"1188\" data-end=\"1213\"\u003e9 OEM frictions to 11\u003c\/strong\u003e, giving you a substantial jump in torque holding capability. The kit includes \u003cstrong data-start=\"1292\" data-end=\"1311\"\u003eupgraded steels\u003c\/strong\u003e and our in-house developed \u003cstrong data-start=\"1339\" data-end=\"1384\"\u003eFX-TRT high-coefficient friction material\u003c\/strong\u003e, specifically engineered for transfer case applications where heat, load, and consistency matter most.\u003c\/p\u003e\n\u003cp data-start=\"1489\" data-end=\"1617\"\u003eThe result is a transfer case that holds more power, runs cooler, and maintains consistent performance when it actually matters.\u003c\/p\u003e\n\u003cp data-start=\"1619\" data-end=\"1755\"\u003eAnd like everything we build—this kit is designed for \u003cstrong data-start=\"1673\" data-end=\"1720\"\u003estraightforward, plug-and-play installation\u003c\/strong\u003e with no unnecessary complications.\u003c\/p\u003e\n\u003chr data-start=\"1757\" data-end=\"1760\"\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1762\" data-end=\"1778\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1779\" data-end=\"2271\"\u003e\n\u003cli data-section-id=\"z96upe\" data-start=\"1779\" data-end=\"1868\"\u003e4340 billet steel hub, case hardened and nitrided for maximum strength and durability\u003c\/li\u003e\n\u003cli data-section-id=\"ggk1m4\" data-start=\"1869\" data-end=\"1961\"\u003eOptimized main spline engagement surface for improved load distribution and reduced wear\u003c\/li\u003e\n\u003cli data-section-id=\"4hokpr\" data-start=\"1962\" data-end=\"2049\"\u003eCFD-optimized oiling pathways for enhanced lubrication and oil evacuation (cooling)\u003c\/li\u003e\n\u003cli data-section-id=\"109k963\" data-start=\"2050\" data-end=\"2105\"\u003eIncreased clutch capacity: \u003cstrong data-start=\"2079\" data-end=\"2103\"\u003e11 clutches vs 9 OEM\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ejudbs\" data-start=\"2106\" data-end=\"2152\"\u003eUpgraded steels for enhanced load handling\u003c\/li\u003e\n\u003cli data-section-id=\"10nhx3k\" data-start=\"2153\" data-end=\"2221\"\u003eProprietary \u003cstrong data-start=\"2167\" data-end=\"2200\"\u003eFX-TRT high-friction material\u003c\/strong\u003e developed in-house\u003c\/li\u003e\n\u003cli data-section-id=\"x8w83j\" data-start=\"2222\" data-end=\"2271\"\u003eDesigned for easy, plug-and-play installation\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"o4mms\" data-start=\"208\" data-end=\"255\"\u003eVehicle Compatibility (ATC-13 Transfer Case)\u003c\/h2\u003e\n\u003cp data-start=\"257\" data-end=\"479\"\u003eThis kit is designed for BMW vehicles equipped with the \u003cstrong data-start=\"313\" data-end=\"354\"\u003eATC-13 \/ ATC13-1 xDrive transfer case\u003c\/strong\u003e, found on most AWD BMW platforms \u003cstrong data-start=\"388\" data-end=\"438\"\u003e2015+ (primarily G-chassis and late F-chassis)\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"481\" data-end=\"484\"\u003e\n\u003ch3 data-section-id=\"1n24fxr\" data-start=\"486\" data-end=\"498\"\u003e2 Series\u003c\/h3\u003e\n\u003cul data-start=\"499\" data-end=\"550\"\u003e\n\u003cli data-section-id=\"1sqdgxn\" data-start=\"499\" data-end=\"550\"\u003e\n\u003cstrong data-start=\"501\" data-end=\"514\"\u003eG42 \/ G43\u003c\/strong\u003e – M240i xDrive, 230i xDrive (2022+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"552\" data-end=\"555\"\u003e\n\u003ch3 data-section-id=\"1yv3uha\" data-start=\"557\" data-end=\"569\"\u003e3 Series\u003c\/h3\u003e\n\u003cul data-start=\"570\" data-end=\"659\"\u003e\n\u003cli data-section-id=\"qzqmig\" data-start=\"570\" data-end=\"617\"\u003e\n\u003cstrong data-start=\"572\" data-end=\"579\"\u003eG20\u003c\/strong\u003e – 330i xDrive, M340i xDrive (2019+)\u003c\/li\u003e\n\u003cli data-section-id=\"1em27i8\" data-start=\"618\" data-end=\"659\"\u003e\n\u003cstrong data-start=\"620\" data-end=\"627\"\u003eG80\u003c\/strong\u003e – M3 Competition xDrive (2021+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"661\" data-end=\"664\"\u003e\n\u003ch3 data-section-id=\"1t2rvxl\" data-start=\"666\" data-end=\"678\"\u003e4 Series\u003c\/h3\u003e\n\u003cul data-start=\"679\" data-end=\"829\"\u003e\n\u003cli data-section-id=\"1wupkoo\" data-start=\"679\" data-end=\"732\"\u003e\n\u003cstrong data-start=\"681\" data-end=\"694\"\u003eG22 \/ G23\u003c\/strong\u003e – 430i xDrive, M440i xDrive (2021+)\u003c\/li\u003e\n\u003cli data-section-id=\"j3sjh\" data-start=\"733\" data-end=\"781\"\u003e\n\u003cstrong data-start=\"735\" data-end=\"742\"\u003eG26\u003c\/strong\u003e – 4 Series Gran Coupe xDrive (2022+)\u003c\/li\u003e\n\u003cli data-section-id=\"rbdv46\" data-start=\"782\" data-end=\"829\"\u003e\n\u003cstrong data-start=\"784\" data-end=\"797\"\u003eG82 \/ G83\u003c\/strong\u003e – M4 Competition xDrive (2021+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"831\" data-end=\"834\"\u003e\n\u003ch3 data-section-id=\"5un8i0\" data-start=\"836\" data-end=\"848\"\u003e5 Series\u003c\/h3\u003e\n\u003cul data-start=\"849\" data-end=\"922\"\u003e\n\u003cli data-section-id=\"1a2srsq\" data-start=\"849\" data-end=\"895\"\u003e\n\u003cstrong data-start=\"851\" data-end=\"858\"\u003eG30\u003c\/strong\u003e – 530i xDrive, 540i xDrive (2017+)\u003c\/li\u003e\n\u003cli data-section-id=\"1x1872u\" data-start=\"896\" data-end=\"922\"\u003e\n\u003cstrong data-start=\"898\" data-end=\"905\"\u003eF90\u003c\/strong\u003e – M5 (2018–2023)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"924\" data-end=\"927\"\u003e\n\u003ch3 data-section-id=\"a3hd0r\" data-start=\"929\" data-end=\"941\"\u003e6 Series\u003c\/h3\u003e\n\u003cul data-start=\"942\" data-end=\"986\"\u003e\n\u003cli data-section-id=\"1v6nsiq\" data-start=\"942\" data-end=\"986\"\u003e\n\u003cstrong data-start=\"944\" data-end=\"951\"\u003eG32\u003c\/strong\u003e – 640i xDrive Gran Turismo (2018+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"988\" data-end=\"991\"\u003e\n\u003ch3 data-section-id=\"lwgrka\" data-start=\"993\" data-end=\"1005\"\u003e7 Series\u003c\/h3\u003e\n\u003cul data-start=\"1006\" data-end=\"1094\"\u003e\n\u003cli data-section-id=\"1tjs4b9\" data-start=\"1006\" data-end=\"1058\"\u003e\n\u003cstrong data-start=\"1008\" data-end=\"1021\"\u003eG11 \/ G12\u003c\/strong\u003e – 740i xDrive, 750i xDrive (2016+)\u003c\/li\u003e\n\u003cli data-section-id=\"t4y84t\" data-start=\"1059\" data-end=\"1094\"\u003e\n\u003cstrong data-start=\"1061\" data-end=\"1068\"\u003eG70\u003c\/strong\u003e – 7 Series xDrive (2024+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1096\" data-end=\"1099\"\u003e\n\u003ch3 data-section-id=\"1y7rbvp\" data-start=\"1101\" data-end=\"1113\"\u003e8 Series\u003c\/h3\u003e\n\u003cul data-start=\"1114\" data-end=\"1208\"\u003e\n\u003cli data-section-id=\"7pgfoa\" data-start=\"1114\" data-end=\"1173\"\u003e\n\u003cstrong data-start=\"1116\" data-end=\"1135\"\u003eG14 \/ G15 \/ G16\u003c\/strong\u003e – 840i xDrive, M850i xDrive (2019+)\u003c\/li\u003e\n\u003cli data-section-id=\"1fickzl\" data-start=\"1174\" data-end=\"1208\"\u003e\n\u003cstrong data-start=\"1176\" data-end=\"1195\"\u003eF91 \/ F92 \/ F93\u003c\/strong\u003e – M8 (2019+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1210\" data-end=\"1213\"\u003e\n\u003ch3 data-section-id=\"17vkp28\" data-start=\"1215\" data-end=\"1234\"\u003eX Models (SUVs)\u003c\/h3\u003e\n\u003cul data-start=\"1235\" data-end=\"1521\"\u003e\n\u003cli data-section-id=\"1kdxlpf\" data-start=\"1235\" data-end=\"1266\"\u003e\n\u003cstrong data-start=\"1237\" data-end=\"1244\"\u003eG01\u003c\/strong\u003e – X3 xDrive (2018+)\u003c\/li\u003e\n\u003cli data-section-id=\"1m7setb\" data-start=\"1267\" data-end=\"1292\"\u003e\n\u003cstrong data-start=\"1269\" data-end=\"1276\"\u003eF97\u003c\/strong\u003e – X3M (2020+)\u003c\/li\u003e\n\u003cli data-section-id=\"1yl8k7a\" data-start=\"1293\" data-end=\"1324\"\u003e\n\u003cstrong data-start=\"1295\" data-end=\"1302\"\u003eG02\u003c\/strong\u003e – X4 xDrive (2019+)\u003c\/li\u003e\n\u003cli data-section-id=\"13x0fh3\" data-start=\"1325\" data-end=\"1350\"\u003e\n\u003cstrong data-start=\"1327\" data-end=\"1334\"\u003eF98\u003c\/strong\u003e – X4M (2020+)\u003c\/li\u003e\n\u003cli data-section-id=\"1dit9r4\" data-start=\"1351\" data-end=\"1382\"\u003e\n\u003cstrong data-start=\"1353\" data-end=\"1360\"\u003eG05\u003c\/strong\u003e – X5 xDrive (2019+)\u003c\/li\u003e\n\u003cli data-section-id=\"1qvp0aj\" data-start=\"1383\" data-end=\"1408\"\u003e\n\u003cstrong data-start=\"1385\" data-end=\"1392\"\u003eF95\u003c\/strong\u003e – X5M (2020+)\u003c\/li\u003e\n\u003cli data-section-id=\"oj0ezu\" data-start=\"1409\" data-end=\"1440\"\u003e\n\u003cstrong data-start=\"1411\" data-end=\"1418\"\u003eG06\u003c\/strong\u003e – X6 xDrive (2020+)\u003c\/li\u003e\n\u003cli data-section-id=\"1iymcyj\" data-start=\"1441\" data-end=\"1466\"\u003e\n\u003cstrong data-start=\"1443\" data-end=\"1450\"\u003eF96\u003c\/strong\u003e – X6M (2020+)\u003c\/li\u003e\n\u003cli data-section-id=\"gwx61s\" data-start=\"1467\" data-end=\"1498\"\u003e\n\u003cstrong data-start=\"1469\" data-end=\"1476\"\u003eG07\u003c\/strong\u003e – X7 xDrive (2019+)\u003c\/li\u003e\n\u003cli data-section-id=\"9836i6\" data-start=\"1499\" data-end=\"1521\"\u003e\n\u003cstrong data-start=\"1501\" data-end=\"1508\"\u003eG09\u003c\/strong\u003e – XM (2024+)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spool Performance","offers":[{"title":"Default Title","offer_id":52907946705218,"sku":"SP-ATC13-DIY","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/7224\/2242\/files\/1_89bfd493-4c02-4606-8c40-3bdc9f29e39f.png?v=1775756616","url":"https:\/\/spoolperformance.com\/fr\/products\/spool-performance-atc-13-stage-2-transfer-case-diy-kit","provider":"Spool Performance","version":"1.0","type":"link"}