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The H&R 18mm rear sway bar for 1996–2004 BMW 540i E39 is offered as a direct-fit rear anti-roll bar to restore or modify rear roll stiffness for the listed model years. Built to match the E39 540i rear mounting points, it functions as a fitment-specific torsional bar for drivers addressing body roll behavior on the rear axle.
H&R 96-04 BMW 540i E39 18mm Rear Sway Bar
