Bilstein B3 Front Coil Spring (37-251475) - BMW 1 Series F20 F21 3 Series F30

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If you're looking for quality, look no further.By choosing BILSTEIN springs, you're backing an uncontested champion: a successful motor sports fitter and a leading original equipme nt manufacturer of automotive springs. The benefits of BILSTEIN B3 shock absorbers are: Innovative technical designs, such as Pigtail ends, Minibloc forms and central force design High-quality chrome vanadium or chrome silicone steel for an extremely high level of break resistance Seated after forming process to prevent heat losses Careful surface compression and coating for a long service life Uncompromising OEM quality The best possible production tolerances ensure that the coils fit inside one another with no contact Use of a premium tapered wire for optimum suspension characteristics Optimum, silent suspension on uneven ground and under heavy loads through barrel-type form Compensation of lateral forces occurring at the MacPherson strut on the front axle through curved form Targeted relief of the piston rod at the shock absorber Default Installation in ever more vehicles Show more