BFI Stage 2 Complete Replacement Engine Mount Kit - Audi / C5 / B6 / B7 / 4.2 V8
SKU: 37859071910

BFI Stage 2 Complete Replacement Engine Mount Kit - Audi / C5 / B6 / B7 / 4.2 V8

Sale price$321.75 Regular price$357.50
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

BFI Stage 2 Complete Replacement Engine Mount Kit - Audi / C5 / B6 / B7 / 4.2 V8After 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

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.


FITS:

  • 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)

NOTES:

  • 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 from the drop-down menu above.
  • Kit Includes:  x2 Engine Mounts  x1 Snub Mount

    Utilizing laser scanning technology - we are the first to offer a solution that gives a factory fit and finish to each mount. All bosses are matched replicas of the stock locations, and all tool clearances and specs are maintained.

    We are the first to develop a fully Billet Replacement mount for the Audi/VW Longitudinal platform that retains all of the factory alignment and stress relieving features. The use of billet aluminum instead of cast and an increase in minimum thickness creates a mount that is dramatically stronger than the cast stock mount.

    STAGE 1

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

    STAGE 2    

    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! 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37859071910

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Stephanie K.
Bozeman, US
★★★★★ 5
Would recommend!
Color: White, Size: Queen
I bought this mattress topper for my teenage daughter for her bed. It was on sale when I purchased it and when it arrived I loved the quality and softness of the topper. Great buy for the price! It stays in place and fits as sized. I have yet to launder it, but I would assume it will wash up just fine. My daughter loves it and makes her bed dreamy.
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Reviewed in the United States on March 23, 2026
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Tara Aldridge
Los Angeles, US
★★★★★ 5
Saved me so much money
Im loving this mattress topper. It has added a noticeable layer of comfort to my firm mattress without making it feel too soft. The cushion is plush yet supportive and has made sleeping more comfortable overall. The bamboo feels soft and breathable. It fits on the mattress with the deep pockets and stays in place alk night. Setup was easy and it fluffed up after unpacking. If you have a firm mattress and want extra comfort without replacing it, this topper is a great option. Highly recommend
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Reviewed in the United States on December 29, 2025
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Sophia S.
Whiting, US
★★★★★ 5
Comfortable, cooling, and OEKO-TEX certified, it’s a great way to refresh any mattress.
This 3-inch mattress topper instantly upgraded my bed with a softer, cooler, and more supportive feel. The bamboo-viscose fabric is noticeably breathable, helping regulate heat throughout the night—great for hot sleepers. The 1200GSM down-alternative fill adds plush, cloud-like cushioning while still offering balanced support for the back and shoulders. It fits securely with the deep pockets and stays in place even when turning. After allowing it to fully expand, the topper fluffs up beautifully. Comfortable, cooling, and OEKO-TEX certified, it’s a great way to refresh any mattress.
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Reviewed in the United States on December 8, 2025
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Leon
Port Orchard, US
★★★★★ 5
Great upgrade for a rental apartment mattress
The mattress in my rental place is firm to the point where it almost feels unfinished. Instead of replacing it, I decided to try adding this topper. It made an immediate difference in the way the bed feels when I sit or lie down. There’s a nice cushioned layer that softens that “flat” feeling but still holds its shape. Another thing I noticed is how breathable it is. I expected thick padding to feel warm, but the airflow here feels better than the original mattress surface. Even after moving around, it never felt heavy or stuffy.
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Reviewed in the United States on November 22, 2025
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Alexa Young
Pawtucket, US
★★★★★ 5
Soft and Comfortable Topper
I got this bamboo mattress topper for a small single bed we keep in our guest room, but I ended up testing it out myself first. The material feels soft and breathable, which is nice because that room can get a little warm in the afternoons. It adds a good amount of cushioning without making the bed too soft. After a couple of nights, my back actually felt better compared to the old mattress alone. I also appreciate that it’s machine washable, because our guest room sometimes doubles as a nap spot for my son after swim class, and spills happen. It dried pretty quickly in the dryer and kept its shape. Overall, it made the bed feel much more comfortable and fresh.
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Reviewed in the United States on November 24, 2025

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