Density Line Engine Mount Pair for MkIV Chassis Volkswagen and 8L & 8N Chassis Audi models use high durometer rubber and are void-free and fluid-free, eliminating the slop associated with factory mounts. Density engine mount pairs reduce drive train and wheel hop, while improving shifting. Learn more about our Street Density and Track Density lines below.
The Street Density Engine Mount Pair is manufactured from 50 durometer rubber, which is approximately 25% stiffer than stock. Since the mounts are also void-free and solid-filled, the resulting mount is approximately 60% stiffer than stock. The cast aluminum mount bodies have also been redesigned to cope with the added stress of spirited driving.
The result is greatly reduced drivetrain slop, crisper shifting, and minimal wheel hop, without any significant increase in noise, vibration, or harshness (NVH) inside of the cabin. These mounts are a completely re-engineered performance solution, not just inserts for use with the factory mounts.
The Track Density Engine Mount Pair 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 cast aluminum mount bodies have also been redesigned to cope with the added stress of spirited driving.
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. These mounts are a completely re-engineered performance solution, not just inserts for use with the factory mounts.
1 Year Limited Replacement Warranty (If you encounter any issues with our products outside of the warranty period, we will work with you to provide a resolution.)
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 control arm bushings 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.
Please select Street Density or Track Density from the dropdown menu below.