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034Motorsport's Density Mounts are the new standard in comfort and performance. These mounts are redesigned with performance in mind and manufactured from high-durometer rubber for increased performance and durability without sacrificing comfort. Density Line Mounts are void-free and fluid-free, eliminating the slop associated with the factory mounts.
034Motorsport Density Line Transmission Mounts are manufactured from a 60 Durometer or 70 Durometer, void-free and fluid-free construction, which is a significant upgrade from the fluid-filled rubber used in stock BMW E9X M3 transmission mounts. The tail shaft of the transmission compresses and pulls up on the mounts, meaning the mount materials should be able to withstand both forces. In addition to these two forces, there are shear-twisting forces within the transmission mount assembly. Given that Polyurethane cannot withstand these forces reliably, it is not a long-term viable material for an upgrade in this location. Rubber is the ideal material for this transmission mount upgrade, as it can withstand stress under tension, compression, and shear.
The result is greatly reduced drivetrain slop and crisper shifting, with little to no increase in noise, vibration, or harshness (NVH) inside the cabin. The solid-rubber, void-free design eliminates the risk of collapse, a common issue with factory mounts. These mounts are a completely re-engineered performance solution, not just inserts for use with the factory mounts.
Which Durometer Should You Choose — 60 vs. 70?
| Feature | Street Density (60D) | Track Density (70D) |
|---|---|---|
| Best For | Daily & Spirited Driving | Aggressive Street & Track Driving |
| Drivetrain Control | Reduced slop vs. factory | Further reduced for max control |
| Shift Feel | Crisper, consistent | Most direct |
| NVH / Comfort | OE-like, next to no NVH change | Moderate vibrations & transmission whine audible |
Eurosport Performance does not have live inventory. Although we aim shipping out not stocked products within 5 business days, supply constraints, import proceedures and product availability can cause additionnal delays. Please refer to the table below for more accurate details.
In stock - We have the item in stock at our warehouse and you can expect fulfillment within 24 hours.
Usually ships within 5-7 business days - We must import this product from our supplier or the manufacturer. Standard import proceedures take between 5-7 business days and you can expect fulfillment within 8 business days.
Back ordered - This product is out of stock at our warehouse with units in transit from our supplier. Fulfillment can vary.
If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h.
12 Months
All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com
