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Drivetrain Mounts and Upgrades

From the factory, engine and transmission mounts are rubber and thus a wear component. Worn out engine or transmission mounts create sloppiness and a disconnect between the driver and your BMW's powerplant. If your vehicle is purpose built for the track, we recommend solid engine and transmission mounts. These have zero deflection, but come at the expense of added NVH (noise, vibration, and harshness). Poly engine and transmission mounts offer a good balance between OEM rubber and solid mounts for those with mixed purpose vehicles, offering great performance and connection with little sacrifice in terms of NVH.

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OEM Lemforder Rubber Mounting - 22116754608 - E39
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Lemforder - Corporate Logo
T#:398031
Part#: 22116754608
In Stock
Sale - Save 29% $ 61.99

This product was last offered at the strikethrough price on
05-03-2026

$ 44.25 USD
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Sale - Save 29%
$ 61.99

This product was last offered at the strikethrough price on
05-03-2026

$ 44.25 USD
Free Shipping on orders $49 and up

Don't neglect your motor mounts! Most stock BMW motor mounts are fluid filled and the stiffness of the mount depends on this fluid. But over time the fluid leaks out and the strength of the mount is greatly reduced. A worn motor mount allows the engine to twist and shift around. The harder you're driving the more shift will occur. As the engine is moving around it can contact other parts in the engine bay - usually cooling related. The mechanical fan can hit the radiator; the A/C compressor can hit a radiator hose, the exhaust will flex and may break. Twisting of the engine can also lead to shifting problems as the transmission twists with it. There are countless issues related to worn or compressed motor mounts so don't overlook these as a regular replacement item (every 50,000 miles).

Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big-name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider.

Fits the following chassis:
E39 w/ M54 M52

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Powerflex Black Series - Corporate Logo
T#:28104806
Part#: PFF5-4628BLK
Ships in 1 Business Day
Sale - Save 15% $ 49.99

This product was last offered at the strikethrough price on
08-14-2026

$ 42.49 USD
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Sale - Save 15%
$ 49.99

This product was last offered at the strikethrough price on
08-14-2026

$ 42.49 USD
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Powerflex's new transfer case bushing insert is made from polyurethane and is designed to reinforce your OE rubber transfer case bushing. This helps to stiffen the bushing and limits excessive movement of the transfer case. This Black Series bushing is rated at 95A durometer, which is significantly stiffer than your OE bushing's rubber. This is perfect for someone who tracks their BMW regularly and is looking for the best performance possible without going for a solid mount solution. As this bushing is 95A durometer, a significant amount of extra NVH should be expected.
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Enthusiast Bundles - Corporate Logo
T#:37284813
Part#: 047282LAEBKT
In Stock
Sale - Save 26% $ 536.98

This product was last offered at the strikethrough price on
05-05-2026

$ 399.00 USD
Free Shipping on orders $49 and up
Sale - Save 26%
$ 536.98

This product was last offered at the strikethrough price on
05-05-2026

$ 399.00 USD
Free Shipping on orders $49 and up

Turner Motorsport Differential Brace for F-Chassis N55/B58

Unleash the full potential of your N55/B58 engine with the Turner Motorsport Differential Brace, crafted to deliver stability and minimize deflection. Designed to withstand high-performance demands, this brace minimizes unwanted differential movement and provides a more immediate, responsive power transfer to the wheels, even at extreme torque levels.

Key Benefits:

Enhanced Driving Stability: Improved traction, reduced wheel hop, and an overall tighter rear-end feel. Durability: Reduces stress on factory rubber bushings, extending their life and protecting the differential bearing. Precision Fitment: Constructed from 6061-T6 aluminum with a Turner Blue anodized finish, engineered using FARO laser scanning and CAD technology. High-Grade Hardware: Equipped with corrosion-resistant Yellow Zinc-Chromate coated 10.9 fasteners, this brace is built for lasting strength. Installation Note:

Installation requires precision drilling (10mm and 15mm carbide bits) for a secure fit.

95A Polyurethane Differential Bushings

These high-performance polyurethane differential bushings from ECS Tuning deliver durability and an optimal balance of comfort and control. Designed to reduce differential deflection and improve throttle response, the 95A durometer polyurethane bushings bring track-level stability to your daily drive, without the noise or harshness of solid mounts.

Sturdy & Resistant: Made from tough 95A durometer polyurethane with anodized 6061-T6 aluminum sleeves, they resist chemicals, salt, and wear. Enhanced Handling & Control: Reduce wheel hop and improve throttle response, giving you better control in high-stress scenarios, from spirited driving to daily commuting. Engineered for Strength: Designed to handle extreme driveline forces, ECS Tuning’s bushings optimize power transfer while maintaining smooth performance. What's Included:

Turner Blue Anodized Rear Differential Brace Precision drill guides and complete hardware Polyurethane Differential Bushings for a superior driving experience

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Powerflex Black Series - Corporate Logo
T#:34382163
Part#: PFR5-1625BLK
Ships in 1 Business Day
Sale - Save 15% $ 97.99

This product was last offered at the strikethrough price on
08-14-2026

$ 83.29 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 97.99

This product was last offered at the strikethrough price on
08-14-2026

$ 83.29 USD
Free Shipping on orders $49 and up

The Powerflex Rear Diff Mount Bushing for the BMW E21 offers a robust solution to support and stabilize the differential, replacing the standard rubber bushings with durable polyurethane. This upgrade minimizes unwanted differential movement, enhancing driving dynamics and responsiveness.

Key Benefits:

  1. Enhanced Stability: By minimizing differential movement, Powerflex bushings ensure consistent alignment, giving better rear-end stability.
  2. Improved Longevity: Unlike rubber, polyurethane is resistant to aging and degradation from elements like oil and road debris.
  3. Responsive Handling: With reduced play in the differential mount, power transfer becomes more direct, allowing for sharper throttle response.
  4. Vibration Dampening Options: Powerflex offers options like the Black Series for motorsport applications and the standard Purple for everyday performance with minimal increase in vibration.

These bushings are popular among E21 owners who want a durable, performance-oriented solution that balances comfort and handling precision. Ideal for both spirited driving and daily use.

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