Suspension and Components› Springs and Components

ECS Tuning

B9 A4/S4 Lowering Spring Set

$336.79

SKU: 051204LA01-A

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The ECS Tuning B9 A4/S4 Lowering Spring Set is designed to dramatically improve the looks and handling of your vehicle. These springs offer an average lowering of 1.0" to 1.5", providing a lower center of gravity for superior cornering and better steering feedback. They also reduce wheel gap for a more planted appearance.
Show original supplier description
This ECS Tuning Lowering Spring Set is engineered for the B9 A4 and S4 models, offering an average lowering range of 1.0" to 1.5" for both front and rear. This adjustment significantly lowers the vehicle's center of gravity, which translates to improved cornering performance and more precise steering feedback. Beyond the performance benefits, the springs provide a notable aesthetic upgrade by reducing wheel gap, giving the car a sportier, more aggressive stance. Key features include a "Made in the USA" designation, specific front spring rates of 374 lbs/in and rear rates of 315 lbs/in, and dual-rate springs with pigtail ends for proper fitment. The springs are finished with a black powder coating and feature a red ECS logo for durability and style. These springs were developed and tested in-house by ECS Tuning's Research & Development team to ensure high precision and quality. For an even more aggressive look and driving experience, ECS Tuning suggests considering an ECS Flush Kit or wheel spacer sets to widen the track width. To complete the installation, the ECS Tuning cup kit/Coilover Installation Kit (ES#3691724) is recommended. This product fits the following vehicles: Audi B9 A4 FWD 2.0T, Audi B9 A4 Quattro 2.0T, and Audi B9 S4 Quattro 3.0T. Always use the vehicle selector to confirm exact fitment.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandECS Tuning
Part Number051204LA01-A
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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