034 Motorsport Motor Mount - Street Density Line - B6/B7 S4/RS4 V8 & C5 A6/S6/RS6/Allroad 4.2L

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034 MotorsportSKU: 034-509-0008


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Product Questions & Answers

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We've been testing these mounts for some time to ensure they are reliable and meet the criterion for the intended use - results so far are very exciting!

WHAT THEY ARE: A new line of rubber motor mounts made FOR us by OE suppliers to OUR specifications.

STREETDENSITY Mounts are solid rubber mounts with a 50 durometer about 10% stiffer than stock, this means they still ride smooth and quiet but provide a marked improvement in drivetrain dampening over stock mounts. Livable street performance with serious sport intentions. Note, since there are no voids or air pockets in these mounts, even though the rubber is only 10% stiffer, the resulting reduction in drivetrain movement is actually 25% stiffer.

THIS IS NOT AN OE MOUNT, OR AN RS4 MOUNT, AND THESE ARE NOT AVAILABLE FROM ANY OTHER SOURCE - These are built by an OE supplier to 034Motorsport specifications for performance applications.

Combine with Density transmission mount and 034Motorsport snub mount and cage for the ultimate in performance drivetrain mounting.


  • Manufactured from Billet Aluminum and High-Durometer Rubber
  • Lifetime Warranty **
  • Rebuildable Design
  • Comes with M10 hardware for increased strength, and better performance (requires drilling, see note below)
  • Reduced Drivetrain Slop
  • Decreased Engine Movement Under Load
  • More Direct Power Transfer
  • Improved Shifting Feel
  • Complete Drop-In Replacement of Factory Engine Mounts
  • Sold in Pairs
  • 2003 - 2005 Audi S4 (B6)
    • 4.2L V8
  • 2006 - 2008 Audi S4 (B7)
    • 4.2L V8
  • 2007 - 2008 Audi RS4 (B7)
    • 4.2L FSI
  • 1999 - 2005 Audi Allroad (C5)
    • 4.2L V8
  • 1999 - 2004 Audi A6/S6 (C5)
    • 4.2L V8
  • 2002 - 2004 Audi RS6 (C5)
    • 4.2T

Please Note: Our Active Motor Mount Resistor Bypasses are sold separately, and are designed keep the check engine light off on vehicles equipped with Active Engine Mounts from the factory. Simply plug these in to the factory harness and go!

Please Note: The nuts for these mounts should be torqued to the factory specification of 25 Nm (approximately 18.5 ft. lbs.). Overtightening these nuts can cause damage to the mount!

Vehicle Fitment

Model   + Drivetrain  
B6 S4 4.2L V8
B7 RS4 4.2L V8
B7 S4 4.2L V8
C5 A6 4.2L V8
C5 RS6 4.2T V8
C5 S6 4.2L V8

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