The AST Adjustable Lowering Springs let you fine-tune your ride height even after installation, offering unmatched flexibility. These vehicle-specific springs lower your car’s center of gravity while keeping the comfort of OEM springs. Crafted from premium materials on advanced Wafios coiling machines, their progressive design balances a lowered stance with improved performance. Designed as a direct OEM replacement and made in the Netherlands, these springs deliver precision, quality, and the perfect mix of comfort and performance.
This Part Fits:
Year
Make
Model
Submodel
2016-2018
BMW
M2
Base
2019-2021
BMW
M2
Competition
2020
BMW
M2
CS
2015-2018
BMW
M3
Base
2015-2020
BMW
M4
Base
2019-2020
BMW
M4
CS
2016
BMW
M4
GTS
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TERMS (REQUIRED)
OFF-ROAD USE POLICY & EMISSIONS COMPLIANCE NOTICE
California Proposition 65 Warning:
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of
California to cause cancer or birth defects or other reproductive harm. For more information, visit
www.P65Warnings.ca.gov.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell,
install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public
roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB),
it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Civil penalties up to $4,819 per violation per vehicle
Possible criminal penalties under the Clean Air Act
Revocation of registration or smog certification by DMV or local authorities
State & Local Regulations:
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local
regulations before purchasing or installing emissions-related products.
Intended Use & Customer Certification:
All performance, racing, or competition parts sold by this company are intended solely for off-road,
closed-course, or competition use on vehicles that are never registered or used on public highways.
Company Policy Statement
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the
use of emission-control defeat devices or any modification that violates the Clean Air Act or state
regulations.