{"product_id":"fj-motorwerkes-x3m-x4m-rear-differential-bolt-collar-upgrade-kit","title":"FJ Motorwerkes Rear Differential Bolt Collar Upgrade Kit – BMW X3M \/ X4M","description":"\u003cp\u003eImprove the precision, response and consistency of your BMW with the \u003cstrong\u003eFJ Motorwerkes Rear Differential Bolt Collar Upgrade Kit\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThis collar kit is designed to reinforce and stabilise the rear differential mounting arrangement in high-performance X3M and X4M applications. Designed for BMW F97 X3M and F98 X4M, this upgrade is suitable for performance road cars, track-focused builds and vehicles where more consistent suspension behaviour is required.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHelps reduce unwanted movement around the differential mounting bolt\u003c\/li\u003e\n\u003cli\u003eSupports more consistent driveline behaviour under high torque\u003c\/li\u003e\n\u003cli\u003eSuitable for tuned, drag-raced and track-driven vehicles\u003c\/li\u003e\n\u003cli\u003ePurpose-built upgrade for F97 X3M and F98 X4M platforms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003eThe differential mounting area should be inspected before installation. Professional workshop fitting and use of the correct torque procedure are strongly recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment note:\u003c\/strong\u003e Confirm exact kit contents, supported model years, supplied bolt compatibility and installation torque specifications before publishing.\u003c\/p\u003e\u003cp\u003eBoost \u0026amp; Tune Bavarian can supply and professionally install this component in-house. A wheel alignment or suspension setup may be required after installation.\u003c\/p\u003e","brand":"FJ Motorwerkes","offers":[{"title":"Default Title","offer_id":49866281615602,"sku":"FJM-F97-F98-DIFF-COLLAR","price":799.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/4825\/5986\/files\/99fe238e-90e2-458b-83f7-d829b279c2db_1.png?v=1785708564","url":"https:\/\/mlab-boostandtune.com\/products\/fj-motorwerkes-x3m-x4m-rear-differential-bolt-collar-upgrade-kit","provider":"M Lab by Boost \u0026 Tune","version":"1.0","type":"link"}