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Connecting to the MHD UNIVERSAL Adapter
Precision-manufactured to exact vehicle contours
The progressive spring design ensures a smooth transition in suspension response
Manufactured in the USA by Downstar Inc
6-cylinder models produced between 1988 and 04/1995
HARDRACE BMW 3 Series F30/F20 Adjustable Rear Trailing Arm (Pillow Ball) - 7437 M6 (E63/E64) ENGINE & PERFORMANCE Connecting to the MHD UNIVERSALThe HARDRACE Adjustable Rear Trailing Arm (Pillow Ball) (part no. 7437) is a direct fit, performance upgrade over the OEM part for the BMW 3 Series (F30) and BMW 1 Series (F20). Precision engineered to tighten suspension geometry, sharpen steering response and improve durability under hard road and track use. Featuring pillow ball (spherical bearing) construction, it offers precise articulation, minimal deflection under load, and consistent geometry