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VTT F9X M5/M8 Front Bushing Insert Kit
VTT F9X M5/M8 Front Bushing Insert Kit - Image 2
VTT F9X M5/M8 Front Bushing Insert Kit - Image 3
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VTT F9X M5/M8 Front Bushing Insert Kit

$229.99

50 in stock (can be backordered)

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Want to tighten up the differential on your F9X M5 or M8 and eliminate unwanted differential movement during hard launches, aggressive driving, or cornering? VTT has you covered with our Billet Differential Insert Kit.

Precision CNC-machined from 6061-T6 aluminum and anodized black for a durable, corrosion-resistant finish, these inserts are designed to fill the voids in the factory differential bushings, significantly reducing differential movement while maintaining excellent street manners and OEM-like ride quality.

The result is improved drivetrain stability, more consistent launches, reduced wheel hop, better power transfer to the pavement, and a more connected feel during acceleration and cornering. This is especially beneficial on tuned and high-horsepower vehicles where differential movement becomes more pronounced under load.

Installation is straightforward and can be completed with basic hand tools. Simply remove the differential mounting bolts one at a time, lower the differential slightly, install the billet inserts, and replace the factory hardware with the supplied upgraded bolts and washers.

Kit Includes

  • 2 Front Billet Differential Inserts
  • 2 Hardened 49mm Steel Washers
  • 2 M12x1.5 x 110mm Mounting Bolts

50 in stock (can be backordered)

Warranty: 12 Months

Grab your Transfer Case Bushings, and Rear Insert kit as a bundle and save 5%!

IMG_4927

VTT F9X M5/M8 Rear Bushing Insert Kit

VTT F9X M5/M8 Rear Differential Lockdown Kit

Looking to tighten up the rear differential on your F9X M5 or M8 and eliminate unwanted differential movement during hard launches, aggressive shifting, and high-horsepower driving? VTT has you covered.

Our Rear Differential Lockdown Kit is designed to significantly reduce differential movement by reinforcing the factory rear differential mounting point. The precision-machined billet insert fills the voids in the factory rubber bushing, dramatically limiting deflection while maintaining the majority of the OEM ride quality and compliance.

The result is a more planted and predictable rear end, improved power transfer to the ground, reduced driveline shock, and less differential movement under high-load conditions.

Unlike solid-mounted solutions, the VTT Lockdown Kit retains the factory bushing while reinforcing it, providing an excellent balance between performance and daily drivability.

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VTT F9X M5/M8 Billet BMW Transfer Case Bushing Inserts

Stop the Flex. Launch with Confidence.

Soft bushings are the enemy of hard launches and drivetrain longevity. The factory BMW transfer case bushings on the F9X M5/M8 platform are notoriously soft—exactly the opposite of what you want when you're putting serious power to the ground.

Sure, you could replace the entire bushing with a solid one, but that often requires lowering or removing the transfer case—not to mention the added NVH (noise, vibration, and harshness) that comes with it.

Our VTT transfer case bushing inserts offer a smarter solution: reduce bushing flex without sacrificing comfort. You keep smooth, quiet drivability around town and at idle—but when it’s time to launch, the transfer case stays planted.

SKU: VTT-F9X-M5-M8-FRONT-INSERTS-1 Categories: , ,

Description

Want to tighten up the differential on your F9X M5 or M8 and eliminate unwanted differential movement during hard launches, aggressive driving, or cornering? VTT has you covered with our Billet Differential Insert Kit.

Precision CNC-machined from 6061-T6 aluminum and anodized black for a durable, corrosion-resistant finish, these inserts are designed to fill the voids in the factory differential bushings, significantly reducing differential movement while maintaining excellent street manners and OEM-like ride quality.

The result is improved drivetrain stability, more consistent launches, reduced wheel hop, better power transfer to the pavement, and a more connected feel during acceleration and cornering. This is especially beneficial on tuned and high-horsepower vehicles where differential movement becomes more pronounced under load.

Installation is straightforward and can be completed with basic hand tools. Simply remove the differential mounting bolts one at a time, lower the differential slightly, install the billet inserts, and replace the factory hardware with the supplied upgraded bolts and washers.

Kit Includes

  • 2 Front Billet Differential Inserts
  • 2 Hardened 49mm Steel Washers
  • 2 M12x1.5 x 110mm Mounting Bolts

Features & Benefits

  • CNC-machined from 6061-T6 aluminum
  • Black anodized finish for long-term durability
  • Reduces differential movement under load
  • Improves launch consistency and drivetrain response
  • Helps minimize wheel hop
  • Improves rear-end stability during acceleration and cornering
  • Better power transfer to the ground
  • Direct bolt-in installation

NVH Notice

As with any drivetrain-mounting upgrade, a slight increase in noise, vibration, and harshness (NVH) may be noticed. This is normal and results from reducing movement in the factory rubber bushings and decreasing some of their sound-dampening characteristics.

Fitment Guide

BMW

  • F90 M5
  • F90 M5 Competition
  • F91 M8 Convertible
  • F92 M8 Coupe
  • F93 M8 Gran Coupe
  • F91/F92/F93 M8 Competition

Additional information

Weight 1 lbs
Dimensions 8 × 8 × 8 in

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