Drivetrain Mounts and Upgrades for BMW E46 M3 S54 (1999-2005)

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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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Revshift Polurethane Transmission Mount Set - 95A (Track - Green) - E...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Revshift - Corporate Logo
T#:600155
Part#: PTM-BT
In Stock
$ 59.99 USD
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$ 59.99 USD
Free Shipping
95A Track (Green): Significantly stiffer and stronger than OEM rubber. Noticeable increase in NVH. Excellent for enthusiastically driven street and track cars.
IRP Performance Polyurethane Engine and Transmission Mounts - E36 E46...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
IRP - Individual Racing Parts - Corporate Logo
T#:401413
Part#: IRPEGS-2
In Stock
$ 185.99 USD
Free Shipping
$ 185.99 USD
Free Shipping

Stock mounts are made from soft rubber and are sometimes filled with fluid to give a car the most comfortable ride possible. The soft rubber and fluid helps to reduce the total amount of vibration, noise, and harshness (NVH) that is transferred into the cabin. The problem with this is driveline slop. The stock mounts allow a lot of excess movement and increases the amount of time it takes to transfer power to the wheels.

In order to address this issue, performance mounts can be substituted to reduce the amount of slop and transfer power to the wheel quicker. Two options for this are polyurethane mounts and solid mounts.

Solid mounts are great for an immediate transfer of power but allow for a ton of noise and vibration to be felt and heard in the cabin of the vehicle. This is great for the track where there aren't any issues with excess harshness, but as a daily driver, this can become an annoying pain in the neck.

The best middle ground is Polyurethane. Polyurethane is much stiffer than rubber and gives you the much stiffer feel you may be looking for. This allows for the increase in responsiveness, but isn't so extreme that it transfers all of the sound and vibrations into the cabin. This makes it much more comfortable for daily use while still reinforcing your driveline.

Features:

  • Aluminum and Polyurethane Construction
  • 80A Durometer Rating
  • New Hardware
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Revshift Polyurethane Motor Mounts - 95A - BMW E36 E46 E9X
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Revshift - Corporate Logo
T#:1120843
Part#: PMM-R36
In Stock
$ 149.99 USD
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$ 149.99 USD
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These mounts are designed for the BMW E36 and E46 including the M3, Z3, and Z4 as well as the E90/E92 M3. Excluding the E46 XI. Revshift polyurethane motor mounts are made in the U.S.A. from high-grade polyurethane. Revshift mounts are the most durable and reliable mounts on the market. CNC machined billet aluminum flanged ends are embedded deep in the urethane which prevents the isolated ends from separating under extreme loads. Utilizing class 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure the strength of these mounts we form the threads with a forming tap which creates denser and stronger threads in the billet aluminum end pieces. These mounts have removable screws for ease of installation. We recommend using Loctite on the threads during installation. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Revshift Polurethane Transmission Mount Set - 80A (Street - Black) - ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Revshift - Corporate Logo
T#:47885235
Part#: PTM-BT-80A
Back Ordered
$ 59.99 USD
Free Shipping on orders $49 and up
80A Street (Black) Bushings: Stiffer and stronger than OEM rubber. Minimal increase in NVH. Great choice as an upgrade over stock mounts (OEM+).

Revshift Polyurethane Differential Bushings - Street / Black (80A) - ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Revshift - Corporate Logo
T#:41728752
Part#: PDB-E46M-80A
In Stock
$ 109.99 USD
Free Shipping on orders $49 and up
Revshift polyurethane differential bushings completely replace the OEM rubber bushings on the E46 M3 and Z4M. These bushings stiffen the differential, improving the vehicle's handling capabilities and eliminating drive-line slop.
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Revshift Polyurethane Differential Bushings - Track / Green (95A) - E...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Revshift - Corporate Logo
T#:582011
Part#: PDBE46MGREEN
In Stock
$ 109.99 USD
Free Shipping
$ 109.99 USD
Free Shipping
Revshift polyurethane differential bushings completely replace the OEM rubber bushings on the E46 M3 and Z4M. These bushings stiffen the differential, improving the vehicle's handling capabilities and eliminating drive-line slop.
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Revshift Solid Bolt-Through Transmission Mount Kit - BMW E21 E30 E36 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Revshift - Corporate Logo
T#:1105938
Part#: STM-BT
Ships in 7 Business Days
$ 89.99 USD
Free Shipping
$ 89.99 USD
Free Shipping
Solid bolt through 70D polyurethane trans mounts. Recommended for race use only. These trans mounts fit almost all BMW cars excluding the E30 M3 and a few older models. They commonly fit the E30, E36, E46, E9x, E8x, E21, E34, E39. Common BMW part numbers that these trans mounts replace are: 22316799331 23711175939 23711175424 23701141614 Revshift polyurethane transmission mounts are made in the U.S.A. from high-grade polyurethane. 70D polyurethane has a comparable hardness to plastics such as Delrin and UHMW. Unlike plastic, polyurethane is an elastomer which means it will return to its original shape if deformed and it will not crack. We do not recommend plastics for automotive use due to their inherent brittleness and inability to return to its original shape when deformed. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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IRP Performance Solid Engine and Transmission Mounts - E30 E36 E46 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
IRP - Individual Racing Parts - Corporate Logo
T#:401414
Part#: IRPEGS-1
Special Order: No Guaranteed ETA
$ 185.99 USD
Free Shipping
$ 185.99 USD
Free Shipping

Stock mounts are made from soft rubber and are sometimes filled with fluid to give a car the most comfortable ride possible. The soft rubber and fluid helps to reduce the total amount of vibration, noise, and harshness (NVH) that is transferred into the cabin. The problem with this is driveline slop. The stock mounts allow a lot of excess movement and increases the amount of time it takes to transfer power to the wheels.

In order to address this issue, performance mounts can be substituted to reduce the amount of slop and transfer power to the wheel quicker. Two options for this are polyurethane mounts and solid mounts. 

The middle ground is Polyurethane. Polyurethane is much stiffer than rubber, but these still let a large amount of movement in comparison to solid mounts. These are great for sporty, aggressive street driving, but for the track are not ideal.

For the track, solid mounts are great. Solid mounts give you an immediate transfer of power, at the cost of increase NVH. This is great for the track where comfort is the least of your worries and power is all that is important.

Features:

  • Aluminum and Polyurethane Construction
  • 80A Durometer Rating
  • New Hardware
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IRP Aluminum Differential Bushings - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
IRP - Individual Racing Parts - Corporate Logo
T#:587020
Part#: IRPDB-46MAL
Special Order: No Guaranteed ETA
$ 151.99 USD
Free Shipping
$ 151.99 USD
Free Shipping
These aluminum mounts are a direct replacement for the stock rubber bushings and have been lightened to remove excess weight. Using aluminum instead of rubber eliminates the "wind up" inherent in rubber mounts, and this deflection slows suspension & drivetrain response. The tradeoff is an increase in NVH. Features: Stiffens chassis/Improves stability Less wear of other components Better durability Provides better control of chassis geometry Replaces OE: 33172282484 Recommended for racing use only Includes: 2 rear aluminum bushing 1 front aluminum bushings
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