Package Contains 4 Shocks and 4 Springs
Full set of four shocks and four matched coil springs.Bilstein
B12 Pro-Kit Suspension Kit 30mm
2017-2021 Audi A4 Quattro
$1,250.00
$1,461.00
Coupon Code Available
In Stock
Estimated Delivery in 3-6 Business Days
Bilstein
B12 Pro-Kit Suspension Kit 30mm
2017-2021 Audi A4 Quattro
$1,250.00
$1,461.00
Coupon Code Available
In Stock
Estimated Delivery in 3-6 Business Days
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Part Numbers & Details
Bilstein Limited Lifetime Warranty
Manufacturer Warranty protects against defects and premature failure.Lowers your vehicle 30mm
Will lower the vehicle 30mm in the front and 30mm in the rearFactory Hardware for Installation
All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation.Monotube Design
Upside-down monotube design allows for better greater dampening power and distribution of support and lateral forces for better torsional strength.Featuring Eibach Springs
Bilstein High B8 Performance Shocks and Struts paired with progressive Eibach Pro-Kit lowering springs for precise response and excellent driving dynamics.Specifications
| Part Number | Lift/Lowered | Position | Item | Quantity |
|---|---|---|---|---|
| 46-275349 | 30mm Lowered | Front and Rear | B12 Pro-Kit Suspension Kit | 1 |
Product Details
The Bilstein B12 Pro-Kit blends Eibachs tried and true Pro-Kit springs with Bilsteins world reknown high-performance B8 line of shocks and struts precisely tuned together to produce a winning package for somebody looking for sportier driving dynamics and a small to moderate drop to ride height. Unlike most lowering spring and shock packages, the B12 Pro-Kit offers OEM type quality with killer performance at an entry level price. Offering lowering between 25 and 40mm depending on application, the B12 Pro-Kit delivers tremendous gains in style and performance at a great value. Offers lowering between 25-40mm (1-1.5 inches) depending on application.
Compatibility List
| Year | Make | Model | Drive | Position | Lowering |
| 2021 | Audi | A4 Quattro | Lowers 30mm" | ||
| 2020 | Audi | A4 Quattro | Lowers 30mm" | ||
| 2019 | Audi | A4 Quattro | Lowers 30mm" | ||
| 2018 | Audi | A4 Quattro | Lowers 30mm" | ||
| 2017 | Audi | A4 Quattro | Lowers 30mm" |
Shock Surplus handles Bilstein's warranty claims; if you encounter a product defect please submit a warranty claim.
View Bilstein Warranty Information
For more information: View the Shock Surplus Warranty Policy.
Shipping Info
Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.
- Applies to items like axles, leaf springs, and long-travel kits.
- No international shipping on freight items — only to U.S.-based freight forwarders.
- Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.
Contact us for an international shipping quote.
Returns & Exchanges
30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.
- No restocking fees for exchanges or gift card credit.
- 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
- Installed, damaged, or dirty parts cannot be returned.
- Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.
Return Shipping Responsibility
CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.
- Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
- Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.
- Under 50 lbs: Discounted carrier rate
- Over 50 lbs: Discounted carrier rate + $25 oversize fee
Refunds
Refunds are issued within 5–7 business days of receiving your return.
- Funds typically post to your account in 1–3 business days depending on your payment method.
- There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
- You will receive an email once your refund is processed.
International Orders
- All international orders are final sale.
- Returns via freight forwarders only accepted if the product hasn’t left the U.S.
- Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
- We are not responsible for goods once exported outside the U.S.
Product Details
Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!
Part Numbers & Details
View full product specifications
Warranty
View warranty coverage
Shipping & Returns
Free shipping within the lower 48 United States
