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The SuperPro 10mm rear lower spring isolator for 2001 BMW M3 locates the rear coil spring to preserve ride height and suspension geometry. Engineered from SuperPro’s polyurethane compound, it resists heat, oils and moisture that shorten rubber parts. The isolator prevents sag and softening, offering long-term spring retention, quieter operation and improved handling and tire wear compared with worn stock pieces.
SuperPro 2001 BMW M3 Base Rear 10mm Lower Spring Isolator
