MMX locks your G8X differential solid—stronger, sharper, torque-directing, track-ready.
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BMW G80 M3 S58 3.0L LSD & Differential Upgrades
Extreme-Pressure Steel Plug With Hex Drive - Fluoroelastomer Rubber Gasket, 9/16"-18 UN/UNF Thread
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This product was last offered at the strikethrough price on
05-02-2026
This kit addresses the inherent weakness in the G8X rear end by filling the air gaps in the front differential bushings with high-strength billet aluminum.
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By utilizing a dual-point system that secures the diff at four points on the unit itself and subframe mounting areas, this kit provides a rock-solid connection.
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An essential upgrade for tuned vehicles or anyone seeking a more connected and predictable driving experience under heavy load.
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