We're proud to announce the availability of the Density Line Engine Mounts for numerous Audi I5 applications, including the C4 Audi UrS4/UrS6, B3 Audi 80/90/Coupe Quattro, Audi 4000/5000, and Audi 100/200!

034Motorsport's Density Line Mounts are the new standard in comfort and performance. Our 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.

Track Density:

The Track Density Engine Mount is manufactured from 80 durometer rubber, which is approximately 90% stiffer than stock. Since the mounts are also void-free and solid-filled, the resulting mount is approximately 120% stiffer than stock.  

The result is a locked-down drivetrain, solid shifting, and virtually no wheel hop. Track Density Mounts will cause a noticeable increase in noise, vibration, and harshness (NVH) inside of the cabin.

High-Durometer Rubber vs. Polyurethane:

Density Line Mounts are manufactured from high-durometer rubber instead of polyurethane for a number of reasons. While vulcanized rubber mounts are more expensive to prototype due to increased complexity of manufacturing and high initial tooling costs, rubber is inherently better than polyurethane as a damping medium for mounts and bushings.

Rubber is able to deal with stress under both tension and compression, while polyurethane mounts rely on the damping medium to be effective only under compression. Rubber is also excellent in shear, where polyurethane is ineffective, making it ideal for applications that apply a shear force to the bushing during articulation.

Rubber does not pack and wear like polyurethane does, which ultimately results in a long-lasting part with consistent performance and comfort.

Street Density vs. Track Density:

We recommend Street Density Mounts for all daily-driven vehicles.   They offer a significant increase in performance with a minimal increase in NVH transfer into the cabin. Track Density Mounts are recommended for purpose-built track cars, or those who do not mind significantly increased engine noise and vibration in the cabin.

Sold individually. One vehicle will require 2 mounts!