F1x M5 & M6 Billet Differential Mount

(1 customer review)


In stock (can be backordered)


  • CNC machined from a solid block of T-6061 aluminum on our 4-axis CNC mill
  • Upgraded Class 12.9 steel bolts
  • Designed to utilize the bushing from your stock differential mount to retain stock drivability
  • Laser scanned to ensure perfect fitment – direct replacement for stock
  • Designed and machined in-house on our 4-axis CNC mill

Models Supported:
– 2012-2016 | M5 | F10
– 2012-2016 | M6 Coupe, Gran Coupe, Convertible | F06 F12 F13


Additional information

Weight 9 lbs
Dimensions 11 × 11 × 6 in

1 review for F1x M5 & M6 Billet Differential Mount

  1. Noah Pullen

    My wife is probably going to think I have an RK addiction and she is probably right. I bought the diff brace after read about other folks stories involving theirs cracking/shearing off. Consider this purchase insurance for the car tuned or not tuned the stock brace is prone to failure. This is money well spent if you cherish your car and savings as most repairs that I have read about were north of $8k USD. If might seem like a dumb inert part but it is pretty much the only thing preventing pure chaos from rapidly unfolding.
    You will need to make sure that your diff bushing is healthy as it will need to be transferred. That said my car rides like stock and I do not hear any diff whine nor is there any bucking felt during shifts.

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