Powerflex Differential Bushing & Bracket Set - F8X M2/M3/M4

Double-mount rear bracket and urethane bushing upgrade helps secure the diff and driveline to the subframe

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Price:
$809.99 – $865.99

Adding a second mounting point for the rear differential helps with rigidity, torque transfer, and prolongs the life of the bushings. BMW included a provision for a second rear mount but decided against it. This makes it very easy to add a second bushing to the right side and create a true dual-ear mount with the addition of a new bracket. 

This Powerflex aluminum bracket is sold as a kit with their own bushings. Powerflex has extensive experience in automotive suspension and chassis systems and has combined these skills with advanced polyurethane manufacturing techniques. Bushing durometer (stiffness) has been carefully selected for specific uses: 

Powerflex Street (Purple) - similar to the OE mount but with all-urethane material and a stainless insert. This is designed for street use and will have NVH characteristics similar to the OE mount but with slightly better performance and a lifetime warranty. Street bushings should be paired with the matching front Street bushings. 

Powerflex Track (Black) - a semi-rigid mount intended for dual-purpose track/street cars. The harder compound will increase NVH slightly but not as much as solid aluminum or Delrin materials. This may be tolerable for street use if you don't mind the added harshness. Track bushings must be paired with the matching front Street bushings. 

Note: Powerflex copper-based grease is supplied with every bushing set, and they will rarely need re-lubing due to the unique design features built into the material to hold the lubricant. 

BMW Fitments:

2 Series
F87 (2016+) > M2 CS Racing
F87 (2016+) > M2 Competition S55 (2019+)
3 Series
F80 (2015-2018) > M3 (2015-2018)
4 Series
F82 / F83 (2015-2020) > M4 (2015-2020)
F82 / F83 (2015-2020) > M4 GT4
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