Engineering excellence meets drivetrain reliability with the VTT Billet G8X Differential Lockdown Kit. As the G8X platform reaches higher power levels, the limitations of the OEM rubber bushings become a critical weak point. VTT addressed this by creating a CNC-machined 6061-T6 aluminum brace that effectively "locks" the differential in place. This black-anodized kit provides the reinforcement BMW intended but never fully realized in the factory design. By distributing torque loads across multiple mounting points, it reduces the stress on individual components, ensuring your drivetrain remains aligned and efficient. Whether you are hitting the drag strip or the local circuit, this kit ensures that every bit of power is transferred to the pavement instead of being lost to bushing deflection.
Key Features
Precision CNC Machining: Crafted for a perfect fit and high-tolerance alignment with the G8X subframe and differential.
Corrosion Resistance: Features a deep black anodized finish to withstand harsh underbody environments and chemicals.
Enhanced Traction: Improves power delivery to the wheels by maintaining consistent pinion angles during acceleration.
Fully Reversible: Can be uninstalled if returning the vehicle to stock, making it an ideal choice for leased or tracked vehicles.
Heavy-Duty Hardware: Supplied with high-tensile 12.9 grade fasteners to ensure the assembly remains secure under extreme stress.
Specifications
Material Type: Aircraft-grade 6061-T6 Aluminum
Color: Anodized Black
Fasteners: M14 Custom 12.9 Grade Bolts, M6 Socket Cap Bolts
Washers: Custom Hardened Steel
Installation Method: Bolt-on (Requires exhaust and heat shield access)
System Type: Billet Dual-Point G80 Lockdown Kit
Prop 65 Warning
Product Q&A
Lifetime Replacement
This product is not eligible for Lifetime Replacement
Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
BMW
G80
M3
S58 3.0L
Use vehicle selector to confirm fitment
BMW
G80
M3 Competition
S58 3.0L
Use vehicle selector to confirm fitment
BMW
G80
M3 Competition xDrive
S58 3.0L
Use vehicle selector to confirm fitment
BMW
G82
M4
S58 3.0L
Use vehicle selector to confirm fitment
BMW
G82
M4 Competition
S58 3.0L
Use vehicle selector to confirm fitment
BMW
G82
M4 Competition xDrive
S58 3.0L
Use vehicle selector to confirm fitment
BMW
G83
M4 Competition xDrive
S58 3.0L
Use vehicle selector to confirm fitment
BMW
G87
M2
S58 3.0L
Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All
warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
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