H&R Rear 20mm Sway Bar Upgrade - E82 128i/135i
Larger rear sway bar balances handling and improves turning/rotation
The H&R Rear Sway Bar for the E82 128i/135i is a larger 20mm diameter to provide more leverage to better control body motions and keep the tires planted squarely on the pavement. Larger sway bars reduce body roll and weight transfer, improving handling, grip, and turn-in response by making the rear end rotate easier. H&R sway bars fit in the stock locations with the original sway bar links and include H&R's exclusive Teflon-lined urethane bushings that require no grease or maintenance. Adjustable links are available and recommended with coil overs or to improve clearance. BimmerWorld recommends sway bars be upgraded after installing a spring/shock upgrade or coil overs, although it's possible to use this with your stock springs and still get a handling improvement.
H&R sway bars are developed and manufactured in Germany to ISO 9001 and TUV standards from the highest tensile spring steel alloy available. Spring steel has the correct strength, stiffness, and spring characteristics for sway bar use. Purpose-built machines manufacture the bars to exact tolerances to ensure a precise fit and correct operation to ensure improved performance for every application. Each bar is heat treated and shot peened for increased surface hardness and then powder coated for long lasting durability.
This E82 rear sway bar upgrade fits the rear axle. Front and rear sway bars should be upgraded together at the same time.
Note on 128i: some 128i models did not come equipped with a factory rear sway bar. If your does not have a rear bar at all you must also purchase the brackets and links to go along with this upgrade. Contact us for details and pricing.
E82 / E88 (08-13) > 128i
E82 / E88 (08-13) > 135i
E82 / E88 (08-13) > 135is