SKU: 81260323642

Billet Aluminum Rear Differential Mount Insert Kit, B9/B9.5 Audi A4/A5/S4/S5/RS5 & Allroad

Sale price$144.00 Regular price$160.00
Save 10%

Pay in installments of $40.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Billet Aluminum Rear Differential Mount Insert Kit, B9/B9.5 Audi A4/A5/S4/S5/RS5 & Allroad034Motorsport is pleased to present Billet Aluminum Rear Differential Mount Inserts for the B9 Audi A4 S4 & Allroad! The B9 Audi A4 S4 & Allroad uses rubber rear differential mounts which deflect under load, causing the rear end to feel vague and loose, as well as leading to less than optimal handling characteristics during on throttle and off throttle transitions. These precision machined billet aluminum inserts are designed to fill voids in the

034Motorsport is pleased to present Billet Aluminum Rear Differential Mount Inserts for the B9 Audi A4/S4 & Allroad!

The B9 Audi A4/S4 & Allroad uses rubber rear differential mounts which deflect under load, causing the rear end to feel vague and loose, as well as leading to less-than-optimal handling characteristics during on-throttle and off-throttle transitions. These precision-machined billet aluminum inserts are designed to fill voids in the factory rear differential mounts, and limit differential movement under load without sacrificing ride quality or introducing any perceivable additional noise, vibration, or harshness into the cabin. The result is a more refined, connected driving experience.

Designed to work in conjunction with the factory rubber mounts, this insert package was engineered using CAD software and thoroughly tested and refined to provide a significant improvement in handling performance and feel.

These inserts were tested extensively on 034Motorsport's in-house B9 Audi A4 Development Vehicle Installation is very simple and is completely reversible.

 

Features:
  • T6-6061 Billet Aluminum Construction
  • CNC-Machined In-House
  • Clear Anodized Finish for Durability
  • Engineered to Fill Voids In Factory Rear Differential Mounts
  • Reduces Rear Differential Movement During Launches & Acceleration
  • Improves Shifting Feel, Resulting in Crisper Shifts
  • Virtually No Additional NVH Transfer Inside Cabin
  • Easy, Straightforward Installation
What's Included:
  • 034Motorsport Billet Aluminum B9 Audi Rear Differential Mount Insert - Rear (2)
  • 034Motorsport Billet Aluminum B9 Audi Rear Differential Mount Insert - Front (1)
Installation Instructions:
Fitment:
  • 2017 - Present Audi A4 (B9/B9.5)
  • 2018 - Present Audi A5 (B9/B9.5)
  • 2018 - Present Audi S4 (B9/B9.5)
  • 2017 - Present Audi S5 (B9/B9.5)
  • 2018 - Present Audi RS5 (B9/B9.5)
  • 2017 - Present Audi Allroad (B9/B9.5)

    Founded in 2005, 034 Motorsport is driven by the passion to bring motorsport-quality performance products and tuning to your Audi and Volkswagen 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: 81260323642

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.2 ★★★★★
    Based on 6 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    R
    Verified Purchase
    Regal Mom
    Lexington, US
    ★★★★★ 4
    XL sized suit review
    Color: Light Blue, Size: X-Large
    I ordered XL for my husband who is 6'1" and weighs 200 lbs. The pants' length was too long and we had to cut off two inches and get them hemmed. Jacket could be a little bigger in the mid section and shoulders but vest fit well. Could do without the fake handkerchief in the suit jacket pocket. Still liked the style and the color of the light blue suit.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 1, 2026
    J
    Verified Purchase
    jessica vasquez
    New York, US
    ★★★★★ 5
    Perfect for teens
    Color: Black, Size: XX-Large
    Great suit! Great quality for the price. Very impressed. Bought for my teens. Didn't want to spend a lot on something they won't wear more than a couple times before they grow again. This suit is great. A tad long in the arms and legs. But overall, its perfect. Fitting suit, but got a size larger for their comfort. Surprised at the quality, my mom was impressed and she knows suits.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 29, 2026
    K
    Verified Purchase
    Katherine
    Lowell, US
    ★★★★★ 5
    Great suit!
    Color: Black, Size: Medium
    Looks super nice! For the price, it is definitely worth it. The fabric looks and feels great and the size range is good.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 9, 2026
    K
    Verified Purchase
    Kia
    Natrona Heights, US
    ★★★★★ 5
    ​Perfect for a wedding! Everyone loved it
    Color: Deep Blue, Size: XX-Large
    ​I bought this suit set for our wedding and it was a huge hit everyone loved how it looked! The slim fit is perfect and looks very sharp and modern. The material is great quality and it comes with everything you need, making it an incredible value. My kids got compliments all night!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2026
    S
    Verified Purchase
    S Perez
    Fort Morgan, US
    ★★★★★ 5
    Great quality
    Color: Black, Size: X-Small
    Fit my son perfect. Ordered XS he’s 5’5” 128 lbs. pants fit great, they weren’t too big or too long. He felt comfortable and got many complements. Tie color comes random not black like the picture.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 19, 2026

    recommand products