Vargas Turbo Technologies offers a specialized engineering fix for the inherent drivetrain "slop" found in modern BMW chassis. The G8X Rear Billet Diff Insert Kit is a precision-machined reinforcement component that installs directly into the rear differential bushing. Unlike complete solid bushings that can make a car unbearable for daily driving, this insert maintains the vibration-dampening benefits of the OEM rubber while mechanically locking out the voids that lead to differential twisting. This results in a significantly stiffer rear end and more immediate throttle response. Please note that while designed for minimal impact, users may notice a slight increase in Noise, Vibration, and Harshness (NVH) as the drivetrain is more securely coupled to the subframe.
Key Features
Precision Machined: CNC-cut from high-grade 6061-T6 aluminum for a perfect tolerance fit within the OEM bushing.
Reinforced Drivetrain: Distributes torque loads more evenly across the rear subframe, reducing stress on factory mounting points.
Optimized Geometry: Engineered specifically for the G8X/A90 platform to ensure zero interference with surrounding suspension components.
Comprehensive Kit: Ships with all necessary hardened steel washers and lock nuts, requiring no additional hardware sourcing.
Enhanced Durability: Replaces the factory mounting hardware with a high-tensile steel bolt to prevent stretching or failure under high horsepower.
Specifications
Construction: 6061-T6 Billet Aluminum
Washers: Two 46mm Hardened Steel Washers
Bolt Type: M14 High-Tensile 12.9
Nut Type: M14 Lock Nut
Package Weight: Approx. 1.5 - 2 lbs
Installation Requirement: May require lowering the subframe slightly for bolt clearance during installation
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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