MMX Performance F8X M2 / M3 / M4 Dual Differential Mount MMR55-1001

The MMX Performance F8X Dual Differential Mount (MMR55-1001) is engineered for the BMW F87 M2, F80 M3, and F82/F83 M4 platforms to add a second rear differential mounting point. Precision-machined from 6061-T6 billet aluminum, this direct-fit mount increases support at the rear differential and helps reduce unwanted drivetrain movement under load.

The MMX Performance Dual Differential Mount can be installed in the OEM differential position using the factory bushings or paired with two MMX Rear Differential Polyurethane Bushings (MMR55-1603) for a firmer mounting configuration. When combined with the MMX Front Differential Lift Mount / Cradle (MMR55-1604), the differential can be positioned 10mm higher, helping improve driveshaft and axle geometry on lowered F8X applications.

The raised configuration is designed to help reduce heat buildup and premature wear at the axle shafts while maintaining a direct-fit installation with no permanent modification required. The mount is also designed to provide increased differential support with a minimal increase in NVH.

Fitment

• BMW F87 M2

• BMW F87 M2 Competition

• BMW F80 M3

• BMW F82 M4

• BMW F83 M4

Designed specifically for the BMW F8X M2, M3, and M4 platform.

Key Features & Specifications

• Precision-machined 6061-T6 billet aluminum construction

• Adds a second rear differential mounting point

• Increases differential support

• Helps reduce unwanted drivetrain movement under load

• Supports the OEM differential position

• Supports a +10mm raised differential configuration when paired with MMX Front Differential Lift Mount / Cradle (MMR55-1604)

• Can be used with factory differential bushings

• Accepts two MMX Rear Differential Polyurethane Bushings (MMR55-1603)

• Raised configuration helps improve driveshaft and axle geometry on lowered vehicles

• Helps reduce heat buildup and premature axle-shaft wear when used in the raised configuration

• Direct-fit installation with no permanent modification required

• Designed for minimal increase in NVH

• Two height positions: OEM or +10mm lifted

• Bushings are not included

• MMX SKU: MMR55-1001

• Designed and tested in the United Kingdom

• Includes a 1-year manufacturer warranty against defects in materials and workmanship

4-Point Differential Kit Configuration

• 1 × MMX Front Differential Lift Mount / Cradle (MMR55-1604)

• 2 × MMX Rear Differential Polyurethane Bushings (MMR55-1603)

• 1 × MMX F8X Dual Differential Mount (MMR55-1001)

Ultimate Differential Kit Configuration

• 1 × MMX Front Differential Lift Mount / Cradle (MMR55-1604)

• 2 × MMX Rear Differential Polyurethane Bushings (MMR55-1603)

• 1 × MMX F8X Dual Differential Mount (MMR55-1001)

• 1 × MMX F8X High-Capacity Differential Sump (MMR55-1000)

Installation Notes

• The Dual Differential Mount can be installed in the OEM differential position or used as part of a +10mm raised differential configuration.

• The +10mm raised position requires the MMX Front Differential Lift Mount / Cradle (MMR55-1604).

• Bushings are not included; the mount accepts factory bushings or MMX Rear Differential Polyurethane Bushings.

• Professional installation is recommended.

• No permanent vehicle modification is required.