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Drivetrain Mounts and Upgrades for BMW E90 M3 S65 4.0L

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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BMW E82 E9X Rear Differential Mounts - Solid Aluminum/Delrin Race ...

10X Entries Into Our F80 M3 Sweepstakes

T#:2955

Part#: TDR9080321

In Stock

Sale - Save 46% $ 304.99

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

$ 163.21 USD

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Sale - Save 46%

$ 304.99

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

$ 163.21 USD

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An aggressive mount design for increased cornering feel, and improved suspension performance.

Turner Performance Polyurethane Engine Mount Set - E36, E46, E9X M3, ...

10X Entries Into Our F80 M3 Sweepstakes

T#:553517

Part#: 003293TMS02

In Stock

Sale - Save 15% $ 497.99

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

Starting at $ 423.99 USD

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Sale - Save 15%

$ 497.99

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

Starting at $ 423.99 USD

Add to Wish List

We know if a soft mount offers a sloppy connection it doesn't work on the track, and a solid mount isn't acceptable as a daily driver (for most!) and set out to engineer a mount that would meet the needs for both. At the core of our enclosed design is a partially-constrained, multi-piece polyurethane bushing with precisely-set preload. This architecture absorbs and disperses resonant engine frequencies as opposed to amplifying them (like some other designs do), which results in a positive-connection, enthusiast-feel mount with the vibration.

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Street Density Transmission Mount - Sold as Set of 2

2X Entries Into Our F80 M3 Sweepstakes

T#:24079616

Part#: 034-509-4062

In Stock

$ 25.00 USD

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$ 25.00 USD

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Designed with both comfort and performance in mind, the Street-Density line from 034Motorsport is the perfect choice for the OEM+ enthusiast. These mounts feature high-durometer rubber construction to keep NVH low. However, they do not utilize the same fluid-filled technology as the factory mounts, eliminating all slop to deliver power more efficiently.

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034Motorsport Density Line Solid Rubber Motor Mount Set - E36 E46 non...

2X Entries Into Our F80 M3 Sweepstakes

T#:568474

Part#: 034-509-0064KT

In Stock

$ 210.00 USD

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$ 210.00 USD

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Collapsing and worn engine mounts can mean big trouble for BMWs. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased with these solid rubber versions. Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted engine motion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better engine response.

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Performance Polyurethane Differential Bushing Set - E9X M3

10X Entries Into Our F80 M3 Sweepstakes

T#:596679

Part#: 026711ECS09

In Stock

Sale - Save 5% $ 177.99

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

$ 169.09 USD

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Qty

Sale - Save 5%

$ 177.99

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

$ 169.09 USD

Add to Wish List

Upgrade your worn rubber bushings with ECS Tuning's Performance Polyurethane Differential Bushing Set. In-House Engineered to improve power delivery and handling, with a superior service life over the soft factory rubber bushings.

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Drivetrain Mounts and Upgrades for BMW E90 M3 S65 4.0L

Sub-Categories

BMW E82 E9X Rear Differential Mounts - Solid Aluminum/Delrin Race ...

Turner Performance Polyurethane Engine Mount Set - E36, E46, E9X M3, ...

Street Density Transmission Mount - Sold as Set of 2

034Motorsport Density Line Solid Rubber Motor Mount Set - E36 E46 non...

Performance Polyurethane Differential Bushing Set - E9X M3

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