{"product_id":"mmx-performance-bmw-s55-n55-one-piece-high-hp-crank-hub-upgrade-kit-4-pin","title":"MMX Performance BMW S55 \/ N55 One-Piece High HP Crank Hub Upgrade Kit - 4-Pin","description":"\u003cp\u003e\u003cstrong\u003e*Recommended for high-powered cars over 700HP*\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEngine failures caused by the standard three-piece crank hub on the S55 and N55 engine are (unfortunately) well known, but these are fully addressed with the installation of the MMR Performance 4-pinned single-piece crank hub. Together with the option of adding our Capture Plate for ultimate security.\u003c\/p\u003e\n\u003cp\u003eThe centrepiece of the MMR kit is the UK made CNC-machined one-piece crank hub, created from billet EN36 steel that's heat-treated with a 0.75mm case hardening, making it incredibly strong and durable. Included are four aerospace precision machined dowels that mechanically lock the hub to end of the crank itself, plus a brand new OE bolt.\u003c\/p\u003e\n\u003cp\u003eInstallation of these dowels is certainly not a DIY job. But, to make the job easier for the professionals, ensuring that the required crank modifications are made safely and accurately, the MMR kit also includes a full installation jig that includes a bolt-on drilling guide, a location bolt for this guide, plus an HSS rolled high-speed drill bit.\u003c\/p\u003e\n\u003cp\u003eTogether, the single-piece design combined with the four-pin location ensures that there is simply no way that the friction plates can ever slip. With the new OE crank bolt tightened appropriately, this delivers a transformational improvement in reliability and peace of mind versus the OE version.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mmrperformance.co.uk\/post\/what-you-need-to-know-about-the-bmw-s55-n55-crank-hub-failure\" target=\"_blank\"\u003eREAD ABOUT CRANK HUB FAILURES HERE\u003c\/a\u003e\u003c\/p\u003e","brand":"IND Distribution","offers":[{"title":"Without Capture Plate","offer_id":44991319769296,"sku":"MMR20-1004","price":1064.18,"currency_code":"USD","in_stock":true},{"title":"With Capture Plate (MMR20-1002)","offer_id":44991319802064,"sku":"MMR20-1004FK","price":1227.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/4616\/3664\/files\/MMR-PCHK-5.jpg?v=1776382943","url":"https:\/\/manjiusa.com\/products\/mmx-performance-bmw-s55-n55-one-piece-high-hp-crank-hub-upgrade-kit-4-pin","provider":"Manji","version":"1.0","type":"link"}