The stock aluminum sway bar brackets in the E39 5-Series?suffer from a serious design flaw that has resulted in many people experiencing?snapping and misshapen brackets, a mounting tab that is simply too weak. Not only was the OE bracket not designed to handle the loads required, but the aluminum construction was also easily fatigued over time, making an already questionable bracket weaker over time. This sub-par construction eventually leads to?the mounting tab breaking off, releasing all tension on the sway bar, causing sloppy handling feel and knocking noises in the rear of your BMW.
Luckily for all of us, the fix is simple.?By swapping the construction from aluminum to steel, while maintaining all of the original dimensions, these brackets offer 3 times the mounting strength versus the OE brackets! This ensures that no matter how many track days or spirited weekends of driving your BMW sees, you can rest easy knowing your rear sway bar is securely mounted.
To top it all off, these brackets are also zinc-coated,?keeping away rust and corrosion for years.
Why go steel E39 brackets instead of using E38 brackets? Fitment. Although the E38 bracket?is a commonly suggested upgrade, it does require a bit of modification to fit properly?and usually?results in a bit of bushing compression, making your sway bar difficult to install.
