Adjustable sway bar links allow you to remove pre-load on the rear sway bar. Pre-load happens during installation and setup which causes tension in the bar. With the adjustable links you can install one side and then adjust the length on the other side to match. Adjustable links can also be used to move the sway bar to better clear other components, a common issue with larger sway bars.
Designed for track/racing use only. Use of solid and spherical bushings will have more noise and harshness than any other material and are not recommended for street use.
SPL racing suspension parts are designed and manufactured in the USA from premium materials. SPL has a foundation in road racing, time trials, and drift competition which require precise suspension and alignment settings that can only come from spherical and solid mounts. Their parts are made with high-grade aluminum and titanium and use CNC machining and advanced production techniques to achieve to tight tolerances and light weight. FK Spherical Bearings include a Teflon inner liner for quieter and longer service life. SPL Parts have a limited one year warranty.
This product fits G29 Z4 30i, M40i, and Toyota Supra GR A90.
Replaces the following BMW part numbers:
31308091445 (31-30-8-091-445)
31308091446 (31-30-8-091-446)
31306886279 (31-30-6-886-279)
31306886280 (31-30-6-886-280)
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
4 Series
G22 / G23 (2021+) > 430i B46D (2021-2024)
G22 / G23 (2021+) > 430i B48P (2025+)
G22 / G23 (2021+) > 430i xDrive B46D (2021-2024)
G22 / G23 (2021+) > 430i xDrive B48P (2025+)
G22 / G23 (2021+) > M440i B58D (2021-2024)
G22 / G23 (2021+) > M440i B58N (2025+)
G22 / G23 (2021+) > M440i xDrive B58D (2021-2024)
G22 / G23 (2021+) > M440i xDrive B58N (2025+)
Z Series
G29 Z4 (2019-2025) > Z4 M40i
G29 Z4 (2019-2025) > Z4 sDrive30i