BFI Stage 1-2 Complete Engine Mount Kit - Audi 4.2 V8

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After a lengthy period of design and testing we are proud to announce the release of our complete replacement engine mount for Audi's 4.2L V8 found in the B6, B7, and some C5 models. This mount will completely replace your old, tired, hydraulic engine mount. In its factory form, the engine mount is fluid filled by Volkswagen/Audi to aid in creating a softer, cushier ride. This softness is a detriment to performance and overall longevity as the fluid within the mount can often cause premature failure. We eliminate this possibility by replacing the mount completely with our proprietary bushing and bracket/Cup design. Maximizing bushing area while trying to minimize vibration where possible gives our mount the advantage of having the best ride characteristics possible from a urethane bushing mount.


with its 65a durometer bushings are geared towards the spirited enthusiast who wants better control over motor movement without the sacrifice of excessive vibrations.


with its 85a durometer bushings are more for the hardcore enthusiast who is more concerned with performance than cabin vibration, great for spirited runs and track cars. Not recommended for daily driven vehicles!


  • All models are equipped with active mounts and will trigger a MIL if resisters are not added. To remedy this issue, you can add our Active Engine Mount Cancellation Kit.

What's Included:

  • 2x - Engine Mounts
  • 1x - Snub Mount

Fitment Details:

  • 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

**1999-2001 Audi A6 (C5) 4.2L V8 uses round snub mount (SKU: EBFIB5SM)

    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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