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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
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Description
Bilstein B4 2009 Audi A4 Trendy Plus Rear Shock AbsorberUpgrade your 2009 Audi A4 Trendy Plus with the Bilstein B4 Rear Shock Absorber, a premium replacement product crafted to meet or exceed original equipment specifications. Designed for enthusiasts who seek reliable comfort and stability, these shocks feature Bilstein's advanced technology to enhance handling and control on every drive. Engineered with precision, the B4 series is perfect for restoring your vehicle's suspension performance to its factory
Upgrade your 2009 Audi A4 Trendy Plus with the Bilstein B4 Rear Shock Absorber, a premium replacement product crafted to meet or exceed original equipment specifications. Designed for enthusiasts who seek reliable comfort and stability, these shocks feature Bilstein's advanced technology to enhance handling and control on every drive.Engineered with precision, the B4 series is perfect for restoring your vehicle's suspension performance to its factory condition. Whether navigating city streets or cruising highways, these shocks provide consistent damping that improves ride quality and absorbs road imperfections with ease.
Bilstein is renowned for its durable suspension components, and the B4 Rear Shock Absorber is no exception. It is built with high-grade materials to withstand daily wear and deliver lasting performance. Installation is straightforward, making it an excellent choice for both independent mechanics and professional workshops.
This shock absorber is an ideal upgrade for Audi A4 owners who value driving comfort, precise handling, and original quality fitment. Trust Bilstein and Tuningsupply for parts that combine innovation with excellence, backed by fast shipping across Europe and transparent pricing without hidden fees. Elevate your ride with the Bilstein B4 Rear Shock Absorber today.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Economical, easy to install, and does the job!
Style: BE-182 1-Pack
First, depending on your car model, replacing your cabin air filter is VERY easy.
With that out of the way, the shop wanted to charge almost 65 dollars to replace my cabin air filter. Decided to just buy one and do it myself. The only downside of waiting is that the air inside the car is not as fresh/clean when you're running your air. Anyways, you can usually get these kinds of filters between 20-45 dollars from auto part shops depending on the brand and features. I've used this brand and filter for the past 3 replacements on my car and they last just as long and filter just as well from my experience. No issues installing, and does in fact do a good job of filtering outside odors.
Highly recommended for the price!
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Great quality and noticed an immediate difference!
Style: BE-966H 1-Pack
Even though it’s not the OEM (original) filter, the quality is outstanding! It was easy to install and fits perfectly. I noticed a significant improvement in the air quality inside my car right away. Definitely a great buy!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Easiest DIY ever
Style: BE-157H 1-Pack
So a Toyota dealer will want $40+ to replace this filter, but for $10 and 2mins you can easily do this yourself.
There’s a great 1:30 how-to vid on the YouTube, drop the glove box (one push) open the little door, remove old filter (note the arrow) and put in the new one, close door, close glove box, enjoy better flow and fresh air. This filter is a HEPA so it’s a performance upgrade over the OEM, fit is perfect, seems sturdier than the OEM, great value if you’ve got 2mins.
Highly recommend. Thanks!
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Reviewed in the United States on June 23, 2025
★★★★★ 5
Awesome Cabin Air Filter
Style: BE-151H 1-Pack
This product is not only cost efficient, it was also easy to install. The instructions in the package were helpful. I would definitely recommend using this filter for your 2017 Hyundai Sonata.
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Reviewed in the United States on May 13, 2026
★★★★★ 4
the "fit" is very precise
Style: BE-176H 1-Pack
Nice Fabrication, Good materials, perfect adhesive applications, "clean joints" etc.
Appears to be a good UPGRADE from the stock Motorcraft product.
CONs: The FIT was a "smidge TIGHT", and took very precise initial alignment and "pressure" to begin to slide into the rectangular hole. I measured the "Hole" at 7.375" wide, or (187.33 mm)... the FILTER is exactly the SAME.
I would suggest maybe reducing the Width by 1 mm, to allow for an easier installation.
The MOTORCRAFT uses an "open-cell" foam structure for the (2) Side pieces on their filter assembly, allowing some "compression to fit", of the Width, easing the difficulty of installation, yet still filling all voids.
In summation, the "fit" is very precise. Not to be hurried or rushed, maybe a bit meticulous for the impatient or weak of heart.
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Reviewed in the United States on April 2, 2025
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