{"product_id":"btkusa-x3-x4-m40i-dual-diff-mount","title":"BTKUSA Dual Differential Mount - G01 X3 M40i | G02 X4M M40i","description":"\u003cp\u003e\u003cstrong\u003eOEM CROSS-BRACE COMPATIBILITY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe factory cross braces remain fully compatible with this differential mount. They were removed in our product photos only to provide a clearer view of the mount.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT FITMENT NOTICE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis differential mount does not fit vehicles equipped with the M Performance differential. Please check your VIN to confirm that your vehicle has the same differential shown in our installed photos before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTICE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease be aware that factory differential positioning can vary significantly between individual X3 M40i and X4 M40i vehicles. This means the differential may not sit in exactly the same position on every vehicle.\u003c\/p\u003e\n\u003cp\u003eWe have revised the product to help accommodate these factory differences, but some variation may still be present during installation. We have not encountered this issue with any of our other differential mounts. The variation does not appear to be related to the vehicle’s model year or differential bushings.\u003c\/p\u003e\n\u003cp\u003ePlease keep this in mind during installation, and contact us if you need any assistance.\u003c\/p\u003e\n\u003cp\u003eUpgrade the rear drivetrain of your BMW G01 X3 M40i or G02 X4 M40i with the BuiltToKillUSA Differential Mount. Precision CNC machined in San Clemente, California, this direct bolt-on upgrade adds support to the factory differential mounting system, reduces unwanted differential movement, and delivers more consistent power transfer under load.\u003c\/p\u003e\n\u003cp\u003eUnder hard acceleration, launches, and spirited driving, the factory rear differential can rotate and shift within its mounts. This movement may contribute to drivetrain slop, wheel hop, inconsistent power delivery, and additional stress on the factory differential mounting points and hardware. The BuiltToKillUSA Differential Mount helps stabilize the rear differential by distributing drivetrain loads more evenly and limiting excessive movement.\u003c\/p\u003e\n\u003cp\u003eThe result is a more responsive and controlled drivetrain with improved traction consistency and greater stability during acceleration and shifting. Whether your X3 M40i or X4 M40i is stock, lightly modified, or built for significantly more power, this mount provides the additional drivetrain support the factory mounting system was not designed to offer.\u003c\/p\u003e\n\u003ch3\u003ePerformance Without Excessive NVH\u003c\/h3\u003e\n\u003cp\u003eReducing Noise, Vibration, and Harshness was a major priority during development. Instead of using a fully solid-mounted design, this BMW differential mount features a carefully selected 80A polyurethane bushing.\u003c\/p\u003e\n\u003cp\u003eThe polyurethane bushing provides additional differential support while retaining excellent street manners, making this upgrade suitable for both daily-driven and high-performance vehicles. Across the complete BuiltToKillUSA differential mount lineup, there have been zero reported NVH complaints.\u003c\/p\u003e\n\u003ch3\u003e100% Made in the USA\u003c\/h3\u003e\n\u003cp\u003eEvery component is proudly sourced and manufactured in the United States. The billet aluminum assembly, polyurethane bushing, hardware, CNC machining, anodizing, and final assembly are all completed domestically for exceptional quality, consistency, and durability.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned specifically for the BMW G01 X3 M40i and G02 X4 M40i\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduces excessive rear differential movement under load\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHelps minimize drivetrain slop and wheel hop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eImproves drivetrain response and stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePromotes more consistent traction during launches and shifting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHelps distribute load across the factory differential mounting system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePerformance-focused 80A polyurethane bushing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned to avoid the excessive NVH associated with fully solid mounts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrecision CNC-machined billet aluminum construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDurable anodized finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDirect bolt-on installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e100% sourced and manufactured in the USA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAll installation hardware included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation is recommended because installation requires a rivet nut, also known as a rivnut, tool. If you plan to complete the installation yourself, rivnut tools are inexpensive and widely available through Amazon and most local hardware stores.\u003c\/p\u003e\n\u003cp\u003eAll hardware required to install the differential mount is included. The rivnut installation tool is not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProudly designed, CNC machined, anodized, assembled, and manufactured in San Clemente, California.\u003c\/strong\u003e\u003c\/p\u003e","brand":"BuiltToKillUSA","offers":[{"title":"Default Title","offer_id":54074132693292,"sku":"sku-45870008598572","price":492.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0287\/7774\/2435\/files\/IMG-7473.jpg?v=1789508604","url":"https:\/\/horizonmotorsport.com\/en-de\/products\/btkusa-x3-x4-m40i-dual-diff-mount","provider":"Horizon Motorsport","version":"1.0","type":"link"}