The AutoTecknic Vacuumed Carbon Fiber Aero Splitters are an aerodynamic front-end upgrade for the BMW F32/ F33/ F36 4-Series M-Sport. Vacuum-formed from genuine 3K twill-weave carbon fiber and finished with a UV-resistant clear coat, these splitters bolt directly to the OEM front bumper lower section using factory mounting points — no bumper removal or modification required. Beyond enhancing the aggressive front appearance of the M-Sport bumper, the splitters help direct airflow more efficiently beneath the vehicle. Each piece is quality-inspected for carbon weave consistency, edge finish, and dimensional accuracy. The set includes splitters for both the driver and passenger sides. Professional installation is straightforward and typically requires only basic hand tools.
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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.