Density Line
034Motorsport Density Line Engine Mount vs. Factory Engine Mount Comparison


034Motorsport Street Density Motor 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. Street Density Motor Mounts are optimized void-free and fluid-free, eliminating the slop and the possibility of leakage and collapse associated with the factory mounts. The mount bodies are made from high-quality cast aluminum using OEM production techniques and employ emulators to replicate the electronics of the factory motor mounts for plug-and-play installation. This ensures MIL-free operation for cars equipped with active motor mounts.

Street Density Motor 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 the 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.

The 034Motorsport Street Density Motor Mounts are designed to be an OEM+ replacement for B9/B9.5 Audi S4/S5/SQ5 3.0 TFSI and B9/B9.5 Audi RS4/RS5 2.9 TFSI. These mounts offer improved performance and decreased deflection over the stock S/RS Audi motor mounts, without the failure-prone liquid-filled design.


  • Manufactured from 60 Durometer Rubber with Optimized Void-Free Construction
    • Street Density for B9/B9.5 Audi S4/S5/SQ5 3.0 TFSI and B9/B9.5 Audi RS4/RS5 2.9 TFSI
    • Track Density for B9/B9.5 Audi A4/A5 2.0 TFSI
    • Reduced Drivetrain Slop
  • Decreased Engine Movement Under Load
  • More Direct Power Transfer
  • Improved Shifting Feel
  • Complete Drop-In Replacement of Factory Motor Mounts
  • Improved Long-Term Durability and Longevity
  • Sold in Pairs


  • Driver Side Density Mount
  • Passenger Side Density Mount


Driver Side:
  • 4M0 199 371 D
  • 4M0 199 371 FG
Passenger Side:
  • 4M0 199 372 D
  • 4M0 199 372 FG

034Motorsport Motor Mount (Street Density) - Audi S4/RS4 - S5/RS5 - SQ5 (B9+)

Shipping calculated at checkout.

Shipping rates and applicable discounts are applied during checkout.

$ 410.00
$ 410.00
Out of stock
SKU: 034-509-5041N/A


Not enough items available. Only [max] left.
Add to WishlistBrowse WishlistRemove Wishlist
Shopping cart

Your cart is empty.

Return To Shop

Add Order Note Edit Order Note
Estimate Shipping
Add A Coupon

Estimate Shipping

Add A Coupon

Coupon code will work on checkout page

034Motorsport Motor Mount (Street Density) - Audi S4/RS4 - S5/RS5 - SQ5 (B9+)

$ 410.00