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Your Vehicle 2025 Mercedes Benz EQE 350 SUV 4Matic Sport Utility 294.612 Electric

Bilstein/Bavarian Autosport Cup Kit

Bav Auto's performance springs lower the ride height up to 30mm (a little less than H&R) with a spring rate that is just a little stiffer than OEM sport springs. Bilstein Performance Plus dampers ensure a lifetime of excellent ride quality.
10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with a production date from 09/1982
Assembled By ECS
Mfg Part #
E28BASKT
ECS Part #
ES#3690180
Brand
Assembled By ECS

1024.99
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This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Availability:
Available from Supplier
Est. Ship Date:
Ships on Oct 23, 2026
Qty
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Product Details

10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with a production date from 09/1982

This suspension package of Bilstein Sport shocks and Bav Auto Performance Springs will lower the ride height and firm up the suspension to provide less bodyroll and better handling. This E24 and E28 suspension package is firm but not harsh and can be used on daily-driven street cars as well as backroad and weekend corner carvers.

Bav Auto springs lower the ride height by 30mm (a little less lowering than H&R) and stiffens the spring rate. Both combine to lower the car's center of gravity and reduce the amount of bodyroll in corners. This is great for street cars with drivers that are particularly seeking a package that can absorb road imperfections without bone-jarring. The ride quality is comparable or a little softer than an E28 M5.

We use Bilstein Sport shocks as the dampers and they feature Bilstein's patented and innovative valving system (and lifetime warranty). With this system, small bumps and impacts are absorbed as they should be. But the shocks stiffen for cornering and other suspension motions. It's the best of both worlds as the shock self-adjusts based on suspension motion. These fit with the stock strut and shock mounts, making for an easy and clean install.

Parts list:

  • 1 set - Bavarian Autosport Performance Springs
  • 1 pair - Bilstein Front Sport struts 
  • 1 pair - Bilstein Rear Sport Shocks 

This Part Fits the Following Vehicles

Make Model Submodel Engine Special Fitment Notes
BMW E24 633CSi M30 3.2L Use vehicle selector to confirm fitment
BMW E24 635CSi M30 3.4L Use vehicle selector to confirm fitment
BMW E28 528e M20 2.7L Use vehicle selector to confirm fitment
BMW E28 533i M30 3.2L Use vehicle selector to confirm fitment
BMW E28 535i M30 3.4L Use vehicle selector to confirm fitment
BMW E28 535is M30 3.4L Use vehicle selector to confirm fitment
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

Kit Contents

Description Brand Qty Lifetime
B8 Performance Plus Front Strut - Priced Each Bilstein - Corporate Logo 2 YES
B8 Performance Plus Rear Shock - Priced Each Bilstein - Corporate Logo 2 YES
Bavarian Autosport Performance Springs - Set of 4 - (NO LONGER AVAILABLE) Bavarian Autosport - Corporate Logo 1 YES

This Product Is Covered By Our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

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Return and Exchanges

Need to set up a return? Click here to begin: Return Process

All you need is your order number and email address.


New/Unused Product Returns

ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.

In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.

Refused Packages

Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.

Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Process

Return Process

ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!

Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.

Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.


All in store credit balances will expire after one year from the original purchase date.

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Shipping Policy

Free Shipping On Orders $49 & Up

Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.

Free Shipping

Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.


The policies listed above are subject to change at any time without notice.

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Lifetime Replacement

Want to know more about our Lifetime Replacement program?

Click here to learn more.

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Why You Should Shop From ECS Tuning

ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.


Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.

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Cancellation Policy

At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.

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Manufacturer names and/or part numbers are used only for identification purposes.

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