Subframe Bushings for BMW 4 Series F36 (2015+)

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New rear subframe bushings can make your BMW feel a lot more planted, especially in high power builds. Upgrading to poly or solid will lessen deflection, making you feel more connected to the road and giving you, the BMW enthusiast, a more refined driving experience.
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Turner F2x/F3x GAC Solid Subframe Mount Kit - F22, F30, F34, F32, F33...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:401521
Part#: 021449TMS01
In Stock
Sale - Save 18% $ 535.99

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

$ 439.49 USD
Free Shipping
Sale - Save 18%
$ 535.99

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

$ 439.49 USD
Free Shipping

Modern BMW's are beginning to leave the performance derived handling and power delivery in the past as the demand for more comfort and features rises. The stiff suspension components designed around having the best driving experience from a luxury car has been left for the M models and replaced with soft rubber bushings and mounts. Unfortunately, this is a good move by BMW to support the masses.

The obvious approach was to offer products so the modern BMW can be upgraded into the car the enthusiast desires, superb handling, control, and a direct delivery of power to the rear wheels. When you upgrade to our Delrin subframe mounts you reconnect that power with almost zero negative feedback.

The added appeal to someone looking to take one of these machines on the race track is Delrin can be used when solid mounts are needed and aluminum is not an option with strict regulations found in Grand-Am, BMW CCA, and other racing series.

Product features:

  • Precision machined Delrin(TM) 150 bushings.
  • Precision machined 6061-T6 aluminum inserts. 
  • Class legal for any racing class that does not allow a solid subframe bushing. 

Performance Benefits:

  • Eliminates subframe movement for more direct throttle and suspension  response. 
  • Minimizes wheel hop due to subframe deflection and movement. 

 

***Installation Instructions***

These GAC differential bushings/mounts fit the following BMWs: 
2014+ F22 BMW 228i 228iX M235i M235iX 
2012+ F30 BMW 320i 320iX 328i 328iX 335i 335iX - Sedan 
2014+ F34 BMW 328i 328iX 335iX - Gran Turismo 
2014+ F32 BMW 428i 428iX 435i 435iX - Coupe 
2014+ F33 BMW 428i 428iX 435i 435iX - Convertible
2014+ F36 BMW 428iX -Gran Coupe 

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034 Motorsport Billet Aluminum Rear Differential Insert Kit - BMW F22...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
034Motorsport - Corporate Logo
T#:5858457
Part#: 034-505-2026
In Stock
Sale - Save 10% $ 115.00

This product was last offered at the strikethrough price on
06-28-2026

$ 103.50 USD
Free Shipping
Sale - Save 10%
$ 115.00

This product was last offered at the strikethrough price on
06-28-2026

$ 103.50 USD
Free Shipping
The BMW F2X/F3X Chassis uses rubber differential mounts that deflect under load, causing the delay of power transfer to the rear tires, as well as leading to less-than-optimal handling characteristics during on-throttle and off-throttle transitions. These precision-machined billet aluminum inserts are designed to fill voids in the factory rear differential mounts, and limit differential movement under load without sacrificing ride quality or introducing any perceivable additional noise, vibration, or harshness into the cabin. The result is a more refined, connected driving experience. Designed to work in conjunction with the factory rubber mounts, this insert package was engineered using CAD software and thoroughly tested and refined to provide a significant improvement in handling performance and feel. These inserts were tested extensively on 034Motorsport's in-house F30 BMW 340i Development Vehicle before release. Installation is very simple and is completely reversible. FEATURES: CNC-Machined Billet 6061 Aluminum Construction with Clear Anodized Finish Application-Specific Design for Optimal Fitment and Performance Engineered to Fill Voids in Factory Differential Mount Bushings Reduces Rear Differential Movement During Shifting, Acceleration, and Deceleration Virtually No Additional NVH Transfer Inside Cabin Straightforward Installation WHAT’S INCLUDED: (Qty. 2) Front Bushing Inserts (Qty. 1) Rear Bushing Insert (Qty. 1) Insert Washer PART NUMBER EXCHANGE: Front Bushing: 33 31 6 792 513 (33316792513) Rear Bushing: 33 31 6 880 637 (33316880637)
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ECS Performance Polyurethane Subframe Bushing Set - 95A - F3X F2X ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:638045
Part#: 006012LA01KT
Back Ordered
Sale - Save 15% $ 380.99

This product was last offered at the strikethrough price on
06-14-2026

$ 323.84 USD
Free Shipping
Sale - Save 15%
$ 380.99

This product was last offered at the strikethrough price on
06-14-2026

$ 323.84 USD
Free Shipping
ECS Polyurethane Subframe bushings are ideal for street driven vehicles and those that see occasional autocross or track time. Featuring 95A durometer polyurethane, ECS Polyurethane Subframe bushings are 25% stiffer than street bushings. Engineered to perform, ECS Polyurethane Subframe bushings offer a supreme level of control, while still maintaining enough comfort for the street. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure.

Key Benefits:

95A Polyurethane isolator reduces unwanted drivetrain movement while still allowing for an aggressive yet streetable driving experience.

Polyurethane bushings reduce subframe bushing deflection versus stock rubber bushings while keeping vibrations associated with such modification to a minimum.

Poly formulation and durometer, profile, and loaded surface area designed to minimize stress concentrations to stay within acceptable compressive strain limits of the material

Tasked with keeping the vehicles rear end firmly mounted while absorbing noise, vibration, and harshness (NVH) ECS Polyurethane Subframe bushings were engineered to provide a balance of control while making ride quality more responsive, yet still streetable. As a factory bushings age, they become brittle and begin to harden and crack. When this happens the bushing will actually shrink and allow excess play, or movement in the subframe. This is typically felt by a sudden jerk or "thunking" noise under acceleration and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushings with full polyurethane this play is eliminated since the subframe is being held in place by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering and acceleration inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver.

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